I wouldn't say that they're appreciating in value at all.
At least not in my experience with the 3 entirely different models that I've sold recently. I've lost money on all 3 based purely on purchase price, not including any mods or repairs.
I've spent a lot of money with RPW, (before I knew better) and have found them to be a bit of a rip off.
Any decent mechanic can do an engine rebuild.
I'm not sure if Malcolm Crockenberg still does mechanical stuff for the general public, but I can ask him..?
It's that time of the year again, so I'd like to wish those whom I've met and those whom I'm yet to meet a Merry Christmas, and an excellent New Year. Remember double demerits, don't drink and drive, don't road rage, don't eat a meal then swim straight after, and all that other blah blah stuff... En...