Hi,
Well,there are several considerations to this wanting to record "a la vintage"
Here's a few:
1.Use LESS mics.Recordings back in 1958 used a maximum or 8 mics.Seriously.
2.Use the room sound to blend the band together,as they did back then.If you hate the room sound,then you'll have to close-mic,and then add ambiance to all of it.Include the bass drum and the bass guitar as well.This will sound more "authentic" than dry bass drum and dry bass guitar.
3.As far as "plugins" go,hey,they didn't HAVE plugins in the 50's,what makes you think that plugins will make it sound "vintage"???
4.The ONLy other thing as far as processing,is they used a Limiter,such as a Fairchild program limiter,on the mix before it went to the cutting lathe.So to "imitate" this,put a ssimilar sounding Limiter plugin across your stereo buss.I LOVE the Nomad Factory Vintage LM-662:
http://www.nomadfactory.com/products/analog_signature/lm662.html
Cheers