I've built 3 rd cranks and one h1 triple, you don't need any special plates or jigs making up, just a few thick strips of bar, i made vee blocks out of 2 axle stands with a v cut out of them ( still usable as stands) my press was a 85 quid job but I bought a 20 ton jack to replace the 10 tone one, very rewarding its not rocket science ,remember press the weights in tighter though as the trueing involves hefty whacks that loosen them , oh I did a kr1s as well that was tricky as no keyway or splines to get them dead on 180 deg apart so I relied on scribe marks , must have been OK revved to 11500 smoothly enough , have a go! Well worth the investment can do all sorts now, wheel bearings and stuff.