OS & Logic Pro X 10.7.9 help

I am hoping that what I need is something that Apple will let me accomplish.

I need to have two computers that can run the same OS run the same OS and both have the same version of Logic Pro, 10.7.9

I am a musician. I have been learning Logic Pro over the last three years as I’ve built a home studio. I came to Logic after trying Pro Tools and Reaper, because I was wary of the restrictions that Apple puts on everything software and OS related.

What I need to do is have my 14" M1 MBP (or an M2 MPB that I purchase to make this work), AND a Mac M2 Studio both be running Ventura. The Studio I have coming in is supposed to be an open box running Ventura. As well, I need both the Studio and the MBP to be running Logic Pro 10.7.9. If absolutely necessary I can try to learn the changes in 10.8 but I would really like to stay with 10.7. All my hardware works with Ventura, and Monterey, but I have had nothing but problems with Sonoma, not only with Logic Pro but across the system on this iMac (four restarts to get the finder to load regularly). I did not want to upgrade to Sonoma, but a mistake during an Apple Chat Specialist help session did that for me. I am ditching this iMac for any music and moving it all the to MBP and Studio. This iMac will be wiped and restored to the original OS, thus my need for the Ventura installer.

I paid for Logic Pro. It was 10.7. I would like to download the installers for 10.7 as well as the installer for Ventura which is the OS that the MBP will have to run.

My intention is to turn these two computers into standalone recording studios, not connected to the internet, that can swap files seamlessly. The M1 MBP I currently use is running Monterey and Logic Pro 10.7.9. I understand that the Studio needs to run Ventura or Sonoma. I will absolutely need both machines to be running Ventura.

I know Apple says they cater to creatives. I am one of them. I have used Mac exclusively since the Apple iic, exclusively for my entire career as a Photographer as soon as I went digital, and now that I am retired I am enjoying my true love of making music. But every step of my way in this journey has been problematic. I’m 61. I no longer have the capacity to absorb the changes that each update brings. I want a simple system I understand that I can use without it changing on me, or requiring updates. I purchased Logic Pro. I purchased it at version 10.7. I have learned how to use 10.7.9. I do not have the capacity or desire to unlearn 10.7 and learn 10.8. All I want is to be able to install the versions of the software that work in my system and workflow, and that I can use competently. This iMac has Sonoma and EVERYTHING is so different I can’t use the machine any more. Basic stuff is moved. I’m sure there are countless reasons why having "About This Mac" buried several clicks into System Preferences improves the user experience, but honestly the speed of updates is just way more than I ever want to deal with again, since learning all these new methods to do things that worked fine just frustrates me to no end. I need to upgrade my hardware, and since I am working with outboard hardware, I have particular requirements of these computers (specs say the 14” M1 MBP and the M2 Studio that can both run Ventura) in complete sync for OS and Software, plug-ins etc. Ventura has been fine for me. And I really do need to have two computers running the same system.

I have a local Apple retailers guru arranged to help me make a bootable restoration system so I can return the software to the state I require it, but it is looking like I am not able to download the things I need to to accomplish this. What? If Apple caters to creative people how can they not understand that the most current is not always the best or in this case is not even workable in my workflows. 

I have this iMac running Sonoma poorly and Logic 10.7.9 not at all. The MBP running Monterey is running Logic 10.7.9. With Sonoma none of my sound can get through my Apollo Twin x in either direction on this iMac, it is just all garbled junk. Yes I understand sample rates etc. etc. Yes I am current, even post Sonoma. It worked seamlessly before Sonoma.

What options does anyone have to remedy this conundrum? I need to have two computers - that by specs are able to run Ventura - both be running Ventura and both have the same version of Logic Pro, 10.7.9.

How do I accomplish this?