You could talk directly to Dingwall about possible saddle replacements or a whole new bridge assembly. That’s weird though. These are paysons on this bass.
Side note. I’m sure I can speak for the group when I say we would all appreciate a photo of said Prima.
Here's a couple of old pictures I took about a year after I got it. Walnut body with Padauk top and back. It was "rode hard and put away wet" - you can see significant pick scrapes in the wood, and the pickup covers are really worn. Sheldon's signature on the headstock is barely visible. I've oiled it up periodically and while you can still see the pick marks, I think the wood is recovering a bit. I haven't tried ironing them out - they really don't bother me too much - but I've thought of it. But it plays and sounds like a beauty. I recent bought a 3x Combustion which I like a lot, but there is just a musicalness to these old Bartolini pickups that the new ones don't capture.
Oh, and by the way, I did hear back from Jeff that he believes they have saddles to fit, but they don't have any on hand. I think I might try scraping the paint off the inside of the string end next time first. But just in case anyone else is wondering ...