93 Brake change over

Hello, Just got this Grand Voyager that has ben converted for a diabled person . Had everything privately checked and it checked out and on the way home the brakes faded in and out to the floor and they would build back up , So I replaced the front calipers cause the pistons were chiped and broken and pads worn some what . Vacumn bleed the brakes and they are still the same , yes used the scan tool to do it , the right seems to not lock up always , know this from power braking , going to check the rubber line for restriction . My question is has anybody attemted to swicth this abs system over to the non abs system with just the booster , master cylinder , metering block and any needed lines . Any thoughts ? :banghead:

That's a good question. Things I think of are the abs pump motor, the proportioning valves, there is an abs computer too. These are things I think of but just don't know.