So with the fretless converted foundation I picked up, I decided to swap necks with my VFL foundation.
I now have 2 "new" foundations that seem to both be better than they were before. I figured the fretless one would just be so so, but it seemed to work really well on that maple body foundation with the "VFL" single coils. And I was pleasantly surprised at how well that later one piece neck worked with the older SF foundation body. I still fantasize about getting the 87 back but it is not likely to happen. I regret not snagging it and the Warwick and a couple guitars that weren't taken in the first break in, but at the time people were also getting into my boat and stealing things so that's why I left them there. Bad choice though but can't change it.
The neck fit super snug into the older SF body like they were precision fit to each other. The older neck into the newer VFL body had lots of play and it had to be pushed all the way to one side to line up. I made a makeshift shim from cut bread clips and business cards.
The fretted one is going to the next band practice for sure. Originally I wanted to bring it as the fretless but since I don't feel as confident on fretless since I have not been playing fretless since I left my old Korean squier p bass fretless project abandoned for at least 20 years (and I think they took that neck, but left the body, but I hope to find it in there when I finally deal with the rest of the ransacked storage).
Here are some pics, I didn't take any close pics of the original form of the new to me foundation, nor of the old one before I swapped necks, but I do have the CL ad pics and old pics of the VFL bass somewhere (or not as I lost many pics as well, phones stolen and gotten wet over the years)
I have a pic I took of my 91 fury and the new one sitting next to my rig before I decided to put the fretless away and just use the 2 furys for the band audition a few weeks ago, that I am including, and a pic of the "after" for each that I just took tonight. And the 4 pics from the CL ad of the black foundation as well, and the final thumbs are some pics of my 87 that I happened to have downloaded off of old facebook posts of it. Was the best $80 I spent on a bass ever. Don't think I will be lucky enough to have that happen again.
Since the 87 had a triangle string tree, I am pretty sure the new one is 88 or 89, straight 3 string tree and block foundation lettering with pointy peavey logo pinstripe headstock, my 91 has script fury and pointy/pinstripe.
I have wanted to eventually strip off the chipped up red paint and hope that the natural grain is not ugly mishmash of unmatched wood pieces. The black one has lots of dents from previous owners but they don't show the wood, so from a distance it looks ok. Since I can't afford the prices people want , I have to accept what I can get in my sub $100 finds. (I paid $140 for my 91 after I was beaten to the punch when it was up for $100 with a case, it was relisted by buyer and he kept the case and made $40, and I got a fury with titan tuners and 5 wire.) My red foundy was a whopping $40 with thrashed case (discussed here in 2016) and my heavy relic 92 was $72 also discussed here in 2016)
Did anyone here get my 87? I wonder... (Thumbs are the 87)

(click thumb for full size on 87 pics)