None of the 2wd 1000's that I've seen have the 4 bolt mounting bosses for the brake assy. Only the 2000's (seen them in a bunch of Kodiak chassis) that are in motorhomes and medium duties seem to be set up that way...
Thanks for the info on the other related changes.
I'll keep searching.
I've considered just using a 2wd 1000 and fabricating a mechanical caliper disc parking brake...it may end up being the cheaper/better solution..