[Exhibitman]

I predominantly collect raw cards. I don't have the budget, space or back strength for massive piles of slabs.

Ask here about specific dealers you are considering.

Most reputable dealers won't horse you around on a raw card. There are enough highly professional, ethical people who want your return business so that you need not deal with douchebags. I've been buying raw cards from some sellers for years without any hesitation, like Brian Marcy at Scottsdale Baseball Cards or Rob over at Burbank Sports Cards (my LCS).

If eBay, use your common sense. Like, if the seller provides a blurry or badly lit scan of a card, just assume that the seller is unprofessional in other aspects as well and avoid that listing. For a card there is no excuse not to provide a clear scan of the card and for raw cards, both sides (unless dirt cheap in which case you can't expect a seller to waste the time on a back scan...).

Post a want list on the BST with details. Odds are someone has something you need.