G'day Jim, The frames are all stamped A7,& shared A7/10, but engine # will tell most all, if it's A10 likely it's a Flash variety- A7 is a Star somethin'...?
It kind of looks real promising to me as it is...? just wouldn't like to hit a bump and bounce backwards
Mine is a '52ish totally built from scratch of bitsas, and it's great, never intended as a resto, but ended up more original bits than expected.
Best I can offer up is go with what you have, get it up and running and as the original bits become available, you can add 'em in, that's easy to say but I realised that the stock bits work/fit best/easiest- if you know what
I mean
good luck with it- you'll be surprised how much fun it can be to ride
Cheers , duTch