The thought had crossed my mind, but I live in kind of a weird spot. It's a peninsula that's suddenly become extremely rich over the past decade, so there's a lot less DIY community, everything for sale nearby carries a huge premium, and radius-based marketplace filters aren't smart enough not to try and send me directly across the bay on what's actually a 4hr one-way trip.
There's a partout listed in exactly such a location, actually, for an '04 Speedster. I'm having trouble figuring out if later access covers are "close enough" to fab into one of mine, but it doesn't seem worth the trip.
I also don't think I ever mentioned this part, but this was more-or-less a $300 boat. Repairs ($30 tach, 7x$50 carb rebuilds + needle seats + wear rings, $220 impeller) have been another $600. If the going rate for these things is $2-350 (ebay), that feels pretty wasteful. Same beef I have with the traction mat kits I see at $3-400.
Anyway, everyone knows boats aren't for poor people, more at 5.