front or rear?
fronts, yes they will fit, and since the SVO and MKVII rotors are the same pn, just get the SVO front rotors to do your 5 lug swap...unless your planning a different route.
I went with the 95 spindle/brake setup in which case you can't use those calipers
rears: if you use the rear calipers, you'll have to find either a wrecked SVO (yeah right) or an abandoned 85-91 MK VII to get the intermediate and axle brackets-the parts are the same and more of the Mk's are available. but if you plan on putting them on a stock length fox rear, then you'll have to flip the brackets and grind the heads on the intermediate to axle bracket bolts for clearance...I can't find the web link right at the moment, but I know there's a guy that's got it up there-pics and all
that's what i've got on the rear, and they stop great...now i've just gotta get rid of my "bent" rear axle housing...
quick note: I dunno how much MM wants for the 73mm SVO calipers, but you can get them from the parts store probably for less...unless it comes as a complete kit (loaded calipers with metal bushings, and stainless braided lines)