Just a note to say that the resin into the vacuform shoes didn't work out like I planned. Demolding didn't go well and one of the shoes vacuform skins completely disintegrated. Maybe I'll have to build a vacuform machine to replace it.
The resin shoes are OK but will need a lot of work as the air bubbles were pretty frequent and a few of the lines/seams of the shoes are going to have to be built up.
Oh well, you can't win them all.