First of all welcome to the Fret. Why don't you head over to the Fret players forum and introduce yourself.
I think you will have to be more specific. Is your guitar an Epiphone Les Paul Standard. If so the pickup change is not too dificult if you know how to solder and follow a wiring diagram. I recently had pickups, and pots swapped on my Gibson Les Paul Classic and had BB1 and BB2s installed along with an RS guitarworks kit. My tech charged me 60 bucks and I supplied all the parts.
It is worth every nickel because when I got the guitar back it had a loud hum.
I took it back and he noticed a bad solder, and fixed it immediately. I would never have known where to start. That is also an interesting configuration. Most guy would go with the BBpro in the Bridge and the P90 in the neck.
There are a lot of guys on this board who know pickup swaps. You will probably get lots of answers.
The Blues is alright!
Guitars: 1968 Gibson SG, 2005 Gibson SG Standard, 2006 Gibson LP Classic Gold top, 2004 Epiphone Elitist LP Custom, 1996 Gibson Les Paul Standard. 2001 Epiphone Sheraton II, 2007 Epiphone G400.
Fender Strats: 1996 Fender 68 Reissue CIJ, 2008 Squier CV 50s, 2009 Squier CV 50s Tele Butterescotch Blonde
Amps: Blues Junior Special edition Jensen in Brown Tolex with Wheat front, 65 Deluxe Reverb reissue,1970 Sonax reverb by Traynor, Avatar Custom 2/12 Cabinet with Eminence Legend V1216 speakers,
2008 DSL100 Marshall Amp , Fender Super Champ XD,Fender Vibro Champ XD
Effects and Pedals: Fulltone Fulldrive II, Fulltone OCD, Fulltone Mini Deja Vibe, Fulltone Fat Boost, Dunlop Crybaby Wah, Boss DS1, Boss DD20 Giga Delay, Boss TU2 tuner, Boss BD2, Ibanez TS9 Tube screamer, Zoom 505. Radial tonebone hot british.