Dremmel does not make the saw blades....Young kid cut his finger off a while back and parents sued Dremmel, so they cut the product. (Where were the parents at that time?)

have to get them at MicroMark.com or tel 1 800 225-1066 items; miniature saw blades
should get# 14134 3/4 " dia 60 teeth and #14133 3/4 " dia 36 teeth and the #14138 1/8 " shank mandrel (1 per blade) . They have a larger selection of sizes and teeth, but these are the ones I use and they do everything. That's a very good source for about anything you could possibly need for modelling.

The hinges came designed that way on M-26 and many others. Hinges are welded onto the fender and 9/16" bolts locked tham in place. If you want an on-off thing, you're going to have to design some way of sticking them on and taking them off. As I recall, the front and rear sections had 2 hinges and 4 bolts to hold them. They dismounted like a door hinge....just slide an inch or two and pull off.
On a plastic, operating model, that's going to be tricky, unless you get some model RR hinges and I don't even want to think about or screws that size. [:'(].

Bill