Vespa Motorsport/ScooterWest recently uploaded a multi-part video series documenting the process of fixing up a P200E. Aside from being fun to watch, there is plenty of information here that could be useful to people working on Stellas.
Part 1: Overview
Part 2: Engine rebuild
Part 3: Electrical
Part 4: Carburetor and oil pump rebuild
Part 5: Fuel tank and oil tank rebuild
Part 6: Cables, front hub, and brakes
Part 7: Locks and latches
Video: Fixing up a P200E
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