Ah, the age old "which pickups" question.
If you can get a good set cheap, then go for it. Most people install the Seymour Duncan '59 (SH1) & JB (SH?) or one of the Custom pickups (Custom/Custom Custom/Custom 5/etc). I had a 59/JB combo on my LS70F until recently, but I was finding them to be a bit lacking in the mids.
I decided to change them, so started to look around, and as ever, was baffled by the choices available. I looked at the Classic '57 & '57+ for that "PAF" vibe, but was put off by the price, and the experiences of other Gibson p'ups (490/498). Looked at SD's and DiMarzio's, but couldn't find any that met my desire for a more mid biased p'up.
I then looked at Bare Knuckle pickups, which are scatterwound, by hand in the UK, and they do a "Black Dog" pickup set which are mid biased, which is what I was looking for. Bought a matched pair (10k & 8.2k) of zebra coils, and they really do sound awesome. Not particularly hot, but have a really nice mid character (I had to redo all my amp settings), and sound nice & warm clean & when shown some gain, put you squarely in classic rock territory. I'd recommend them to anyone.
www.bareknucklepickups.com