Wow, what a find and it looks complete, gold! Hope you got a V5!
Take loads of pictures and file them, start a spreadsheet so you know what you’re doing with stuff, when it went in and how much it costs.
Be absolutely clear what you expect to be done by a trader. Write it down with pictures and get firm date for when it will be done, give them a copy with the parts
Things that have and still are taking a long time for me were paint 2 month?, wheel building 3 month? and seat covering 2 month so far... (still waiting for the seat).
Build a work table on casters in timber, it's a light weight so it won't need to be super strong. It's so easy building from a work table