I had the Perspex cut a little while ago and ordered most of the components from a number of suppliers.
Weld on #4 and needle applicator from 2122 who used to be Tank Mates, note they now do small size tins.
Motors, esc’s and fans/propellers from Hobbking
Wire from ebay
Starbrite liquid tape from Amazon
End caps laid out
Cutting the syringe to size with a razor saw and mitre box
Assembled end caps