Someone made a business out of grafting those flat deck trailers to 4wd OBS chevys back in the day, I can't remember the company name.....they always struck me as a compromise that offered very little good for all the bad.
If you really can't backup a trailer, or are length limited, I think a TH475 out of a cadillac or buick would have been a better solution....It worked well for the old GMC motorhomes.
