Oh, I forgot... A couple of other things altered so far... I've relocated the ignition to just underneath the tank, with a custom bracket made from another scrap bit of metal..
Here's how it looks with the tank on...
And I made a new bracket for some tiny clicks a mate gave me... (not entirely sure they work yet, that could've been a waste of time!)
I'll take a picture of the whole thing soon, just glueing some leather right now!