Dang, good score Bro. The Kwakas don't like to stop or turn but they are chompin-at-the-bit to go faster
I had a 500 and a 380. The 380 had GRUNT so even with the luggage, it pulled hard from an idle. Good touring bike.
The 500 was a beast with lots of speed but hard to turn.
The 500 and the 750 both tended to overheat the middle piston and seize. The pipe and front fender limit air across the center jug. I'll bet the H1 is only hurt on #2. My 500 was already hurt and it wasn't long before it had a hole in #2. My friend bought several "broken" H1s and H2s just because he knew they had 2 good pistons each. (true)
I would persue titles for all the Kwakas, they fetch good money these days. You might sell one and have enough leftover to get at least one of the broken ones back on the road. Hell, you might part-out the H2 and have some change