Mark350 wrote:
How much would a complete Dyane engine weigh, with a gearbox, the driveshafts and the exhaust crossbox still attached?
Two-person carryable with reasonable ease. Not one-person. An engine without box is borderline for one person if it's got the heavy flywheel still attached. One person can _just_ manhandle a complete engine/box setup into the chassis, but it's a bit "heave-lever-rest-wiggle".
TBH, I'd just split the engine and box.