I know this is tongue in cheek but I've spent a RIDICULOUS amount of time learning about/playing with my guit amp sims (TH2 and GR5) to emulate specific sounds from specific players (from specific recordings). As it happens I generally use SRV for my cleanish blues strat template.
Most importantly though I search for/craft MY old sounds and the sounds of the other players I worked with for my own recreations of what I used to do.
Included sim presets are generally garbage but can kind of sort of give you an idea of how to use in sim components to get close to what you want.
A better plan (for me) though is to actually read up on the gear your favorite players used then try to recreate their chain (effects, amps, etc) from scratch using the included models of whatever amp sim you own.
Many times you will need to find suitable substitions (like instead of some crazy hot rodded Marshal custom job you find a similar Marshal model in the sim components and tweak the heck out of it).
Of course the Sonar included TH2/3 are stripped out versions but still have some classic sounds for most things. It's much better to upgrade/own fully stocked sim programs (or buy the desired packs from companies like IK for sepcific models of amps/effects).
One of the MOST important things is to work the "room/cab/mic" controls these sims have. In TH2 you click on the cabinet to swap out/add mics, control mic distances/angles, pick a "room", etc. In GR5 you use the cab component options such as the "Air" slider on the cabs or better yet the Control Room Pro module/mixer.
More recently I've been using Aux Tracks to feed my dry signals into and stacking those Aux Tracks with different sims/sounds (perhaps I prefer the Marshalls in GR5 over the ones in TH2 and the Fender's in TH2 over GR5 or I want a GR5 head/effect running into a TH2 cab... whatever).
So I send that one audio clip/track to multiple aux tracks with multiple sim setups to blend, pan and add effects that compliment each other (like adding a clean attack to a nasty/dirty/mushy distorted sound).
It also allows me multiple instances of the Prochannel (and particularly the QuadCurve EQ) to ultra sculpt the guit tone. Then that all gets fed into a final target bus for blending/smoothing.
The modelling these days is awesome (it used to suck balls and I never used it) but getting an epic guitar sound in the studio has always been much more than just tossing a mic in front of a nice amp. There are lots of complex tricks and techniques involved (from tracking doubles, mic'ing, panning to straight up post tracking mix effects).
It is HARD and complex stuff that requires a TON of reading and experimenting and EVERYTHING changes as soon as you use a different guitar with a different output tone.
So sit down with your main guitar and start creating your own presets, reading about gear that your heroes used and mathcing it up with models you have, consider upgrading you entry level amp sims (do your research first to get what you REALLY need), learn your sims THOROUGHLY and learn about traditional guitar amp recording and mixing techniques (mic set up, compression, EQing, effects, etc).
I've actually been considering providing a service where someone could send me a dry DI guitar recording (so I have a sample of their actual guitar's output and their playing style), tell me what type of sound they are looking for and then creating custom guit sim presets/Track Templates they can use to toss in their own projects.
As far as a "talent" plug... can't help with that but I will be providing online lessons at some point too. Of course technical ability does not equate to real talent... but it doesn't hurt. lol
Good luck and have fun.