[kevinr1970]

If by '88 you mean '89-91 Suburban and Blazer ('88 still looked like the '87)then you need the core support, harness, grill, headlight bezells, and headlights. Probably a few more smaller pieces.
The inner and outer fenders and hood are the same.
Its only really about a dozen and a half or so bolts - 5 or 6 on eash side to the outer fenders, 3-4 to the front edge of the inner fenders and 2 big ones to the frame horns.
The harness I think is the bigger issue, I haven't installed mine yet. The way the fuse block comes apart is different but I am not sure when it changed. On an '87 you might be lucky and it will bolt right to your fuse block, but I wouldn't count on it. Other than that I guess its a whole lot of cutting and splicing. Tedious but not difficult.

I paid 200 for mine but the same guy about a month later (he parts lots of 'burbs) was offering a complete front clip (inner and out fenders, hood, core support, grill, etc) for $250.
Expect to pay a lot more than that at a wrecking yard. Look for someone parting a 'burb or it might even be worth your while to buy a complete one with a dead engine or tranny. Locally I've seen them go for anywhere from (asking price) $500-$1500.
The guy I bought mine from said he won't pay over $500 for a complete and he has had three or four go through his yard since the spring.
If you only need the grill parts then you might be able to part it a bit and make a little of your money back. If given a choice between a dead engine and a dead tranny I would take the dead tranny. Its harder to show someone the tranny is still god with a dead engine than the other way a around. Also, an engine is a little more universal in its application than a tranny and it should be fuel injected (TBI).