Hi I seriously need help. Do any of you have recommendations on power chair ramped carrier for vehicles? I'm needing one in the next couple months when my power chair is ready. I've been looking online but I see that some have poor reviews. I'm thinking under $500. It's got to be good for 500lbs, over 26" wide and over 45" long probably 6' ramp. Anyone had good luck with some or could tell me to avoid certain brands?