Belt size ?'s. Smog delete and AC delete

[orangecapri]

I did a search and couldnt find a certain answer. I need the right size belt for the fms ac delete that relocates the ps up to where the ac was, no smog pump at all, 3g alt(which is in the same location as stock so i dont see what this matters), and stock pullies not underdrives. Please let me know so I can get the right one. Thanks

 

[DmnStr8]

With the same setup on an 87 I run a 73.5" belt

 

[orangecapri]

and stock pullies? Thanks if so. Ive seen a few threads that showed that size. Just wanted to make sure since the parts store is about 30 miles away.