Without AAA, I don't think 516 PA is enough for the 6 or 7 spot in the order. At least not without fatigue that will make his glove worse.
I don't know the exact numbers but I'd guess the B/B+ version will give you about 20 errors and a handful of + plays. The A/D+ version will probably be around 10-12 errors and a handful of - plays... so their gloves are probably a wash.
If it's an option I'd probably take the '87 version and just hit him 8th, then spend the money elsewhere. But if you need him to be a big contributor to your lineup I'd go with '86.