Below are prices for a local, pickup only sale. I'm thinking grab all the 1986 Topps rack boxes, maybe an 87 rack box, and make a deal for a couple of cheap '88 Score boxes and '90 UD to try to build a set since he's got plenty available, they're both beautiful series of cards, and I may pull an '88 Gregg Jeffries or '90 Kevin Maas 
Just thought I'd share, see what advice others have and see what you'd get.
ALL BASEBALL
1986 Topps 24 pack rack box 15.00 4 available
1987 Topps 24 pack rack box 15.00 4 available
1988 Donruss wax box 36 packs 5.00 6 avail.
1988 Score wax box 36 packs 5.00 22 avail.
1989 Topps rack packs .34 cents each 200 avail.
1989 Donruss rack packs .50 cents each 40 avail.
1989 Topps wax box 36 packs 6.00 10 avail.
1990 Topps wax box 36 packs 6.00 1 avail.
1990 Upper Deck wax box 36 packs 5.00 16 avail.
1990 Topps rack box 24 pack 12.00 2 avail.
1990 Donruss rack packs .34 cents 40 avail.
FACTORY SEALED SETS 5.00 EACH
1987 Topps factory Xmas 15.00 each 8 avail.
1988 Fleer 8 avail.
1988 Score 6 avail.
1990 Topps Factory 10.00 each 2-3 avail.
1989 Fleer 6 avail.
1989 Donruss 6 avail.
1989 Topps factory Xmas 10.00 each 3 avail.
1989 Score 12 avail.
1990 Donruss 6 avail.
1990 Upper Deck 15 avail.
1991 Upper Deck 10 avail.
1992 Upper Deck 3 avail.