The DM1 and JRM1 look very similar shapes, at least the body does? The headstock is better on the DM1.
The correct fretboard markers are on the TL1-TB (or close enough!) Just the 12th is wrong.
Do you think I could get away converting a bolt on to set neck? Perhaps I could recess the 4 bolts into the timber and fill, as well as gluing the joint (after making sure it works OK )
The only thing I really have no idea how to do is gluing a new top on it, and doing the binding. I have used a router, but I think there must be a special tool for the binding...
And the shape of the hole inside. I'm assuming it is solid under the roller bridge, but the extent of the void is unknown (and I'd guess important to the sound...?), the info might be out there somewhere...
It might be easier to cut the body from a piece of mahogany and get the shape 100% right, if i can find the dimensions, that wouldn't be the hardest bit of the project.
Is the Jet a curved or flat top? it is hard to see in the photos...
Hardware's the least of the worries at this stage, if it came out well I'd happily save up for the right bits.