what Blazer wheels will fit my 6 lug gmc?

[hpcgmc]

I like the stock Rallye wheels and found a set of wheels off a K5 blazer for a good price. Is there a certain style that will fit? These are 15x8 6 lug. I've asked the selle about the year Blazer and the offset, but haven't heard back yet.

Are the 8" rims pretty narrow? I'm not looking for huge wide tires, but definitely want something kind of wide and low (I like the look of the old 60 series tires I had on it in the 80's). I will probably lower the truck a few inches with drop shackles in the rear and a 2-3" spindle drop in the front.