Coin Slots - Machined Pt2

Got in work at 7am today. As wanted to crack on with milling the rest of the angles and the coin slots.
Managed to break one slot milling cutter :-D lol and I was only taking a small cut as well.

Machined Coin Slots

Just need to drill and tap/drill and pin them onto the support plate.

I'm thinking about leaving the rads in the slots ??
I don't have a problem filing them out square, but thought it might me a nice touch, saying as the R5's were supposed to be a 'cheep' model.

Comments welcome please.