The Mamiya 645 Super, 645 Pro, 645 Pro Tl and 645e all offer 1/1000 of a second. All but the 645e offer everything else on your list.
I do sometimes use 1/1000 of a second, when I want to minimize depth of field, but not usually. And 1/500 will usually serve as well.
Ah, I was just going to suggest the same thing. I use a Pentax 67 (1000th, but fixed back) and a Mamiya ProTL 645. Metered prism available, motor drive grip, 1000th, etc. I have virtually zero complaints with my Mamiya. I'd say I have used 1000th just to keep shallow DOF in certain situations. However stopping down to f/4 from f/2.8 and shooting at 500th probably wouldn't have affected the look of the shot noticeably enough. I'd be perfectly content in fact if the Pro TL maxed out at 500th.