Welcome to this forum! I've moved your thread into the modified 2002-2005 section. There are different companies which specialize is conversions like this for disabled people. I saw one company at the auto show many years ago that converted a few vans to have an automatic wheelchair ramp, power sliding door, power liftgate hatch, and even a feature to lower the vehicle on the side where the wheelchair enters. There was a vendor on this site that advertised a power liftgate option for the hatch. I haven't seen it advertised in quite a while.