I also thought of this when recently doing my swap. After talking with Blackbirds (thanks for all the insight BTW) I decided there was not enough time to do the Eldo. calipers. So I used 3/4 ton 4wd rotors and calipers. I did this on a ford Dana 60 also.
It worked out well just need to figure out some pedal issues and find a way to get all the air out of the system.
Oh and get a driveline brake.
