OK, the struts got here & they're different than I was originally told. The shaft size isn't 1.25" but is actually 1.18" (or about 30mm OD) so I'm thinking it's a no-go for these to use. I don't have access to any DOM tube this size in town & I would have to send out for some from online, so more complications. GoPower will do a refund, so all I need to do is send them back & pay shipping. They really are good people to deal with, so if you need anything they are worth considering.
It's getting too complicated at this point for the bike & the money & time it will cost to work on it this way. If I had a metal shop it would be different, but as it stands, my woodworking tools aren't up to the task. Thinking it will just be easier to track down a new strut from somebody who has one, or find a roller for parts that will give me what I need in spares.
I didn't know that the "MB200" model these struts go on are for a completely different type of bike than the Baja MB200 or MB165, go figure.
Anyone have a spare strut that's rebuildable I can get? Would prefer a pair really, since that way they would match. PM me if you do.