Ebay can be a great resource for tools and tooling as well.
Yeah. Lots of Myford spares, both New Old Stock, used, and aftermarket replacements, available if you are patient. Myford went into bankruptcy a couple years ago, but another outfit in England has bought up the spares and is getting some stuff made new as required. Support won't go away anytime soon.
I just noticed something on the pictures. What is the center distance of the Myford? It looks like a Long Bed in the photo, but it may just be a perspective issue. If it is about 18 inches it is the standard one (which is what I have) and IIRC the long bed stretches out to being able to take over 24 inches between centers.
The long beds are pretty rare.
I gotta say, that Myford looks amazing. I might (might!) have you beat for tooling, but I have been accumulating 'stuff' for mine for over 20 years now. The one that I have is my second Myford, so I have had the opportunity to swap and pick out what I wanted to keep.
About the only thing I have not got that I might not ever, is the Myford Dividing head, as they are both expensive, and I have not had a need for one yet.
Whitworth wrenches can be got through Snap-On tools (expensive), or through the mail order outfits that supply the old British bike guys (less expensive), or found at random, pawing through boxes of junk tools at flea markets and such (cheap). I have a couple of the right size wrenches and a small adjustable Crescent wrench type that I use on mine for the ones I have not
Cheers
Trev