baggedmitsu
+1y
Mighty max made trucks with bucket seats, i know because ive owned at least three with factory buckets...they bolt right in. If you notice the floor of your mitsu it already has the holes in the floor. Also there were a few years of older monteros in the late eighties and early nineties that had buckets that bolt into mitsus...i know cause i did that once too.
Your best bet is going to find some buckets in a mitsu. Ive found them at m and s recycling online just do a google search