Hi Darren
Boydie is right, record twice, this also very often applies to vocals too, those subtle differences in timing sound wayyyyy better than a doubler.
As for your sound, well, theres a lot you can do, and this is just my opinion...
Start with the undistorted sound, epi pickups have come a long way, but changing the pickups might help, it'll always sound good.
I have tried the Vandal amp sim plugin but I really can't get on with it, as a guitarist I use a good old fashioned all valve amp and stomp boxes, and a condensor mic. but if this isn't an option then do some controlled tests with your plugins.
less is more with distorted rhythm guitars, I normally use a tele for rhythm (in a tight crunch sound), and often only a single take is enough, for solos I have a few stomp boxes and guitars that I can choose, but a Epi SG special is very nice, ,if not noisey.
I rather turn to delay rather than reverb, as it can sound like both, reverb also often is applied at the mastering stage, to give it some overall depth.
This might also sort your 'dry-ness' out, have faith with this, as you'll only get a feel for this after a few time sin doing it...
look at separating the guitar parts Left and Right, and having them lower in the mix that you think, as being distorted they lack dynamics (take a listen to this as you'll hear the effect of heavy guitars with hardly any dynamic range...You need space for every instrument.
Original (telecaster + Soldano L and Mesa Boogie R)
https://soundcloud.com/cowparsleyman/she-shook-me-cold-v2remix (removed the heavy rectifier amps, replaced with light crunch Yamaha SG 1000)
https://soundcloud.com/cowparsleyman/she-shook-me-cold-v3-remix-1/s-Gr1pzHope this demonstrates bringing the levels of distorted guitars down, leaving the vocals more prominent.
Hope you find this useful
cpm