Guit and Amp together = 100% I'm not a guitar snob and I am NOT saying _tom_ has low standards... so please do not take offense anyone
From *MY* experience ('58 Epi Explorer, LP, and SG - bolt on and set neck varieties, etc) the solid body Epis are TRASH... the Semi-Hollowbodies on the other hand are OK - for their price range (this is perhaps what _tom_ is referring to).
FOR REFERENCE:
I've OWNED Gibson USA, Gibson Custom Shop, Fender (US, MIM, and Asian), Epi, Jackson, Ibanez, Johnson, Kima, Squier, and on and on.
I've done WORK on Metal, Blues (new and old), Country, Rock, and so on. I ain't rich, but I can pay my bills (barely).
As far as GEAR, I build single ended Class A tube amps (I take custom orders), as well as use commercially available amps (mainly Marshall and Fender). I also repair, upgrade, and modify my guitars and amps.
PICKUP SWAP
Swapping the pickups will give you an *approximately* closer sound to what your aiming at - I definitely recommend replacing the pots, jack, and switch as well...
EVEN THEN, the wood is poor quality (yes, wood quality even among the same species can vary - wood is not wood), the hardware is extremely cheap (nut, bridges, etc), and the craftsmenship (frets, tuner bushings, etc) is poor as well. Cheap Squier Fenders excel the quality AND craftsmenship - so this should give you an idea of where the Epis sit!
AMP:
If you can get an EL34 power tube based amp this will be a start - a Marshall would be your best bet.
Otherwise a semi-"british" voiced amp will be a close approximation as well... that's why I recommended the Peavey Classic 30 - it's cheap and "british"... although it's more along the lines of an Orange amp flavor (a little brighter than a Marshall, and EL84 instead of EL34).
BUT, for a small budget you can get pretty close
