Howdy, I have a 2000 Kiefer slant load trailer with a half ramp and upper doors. The ramp was originally just particle board inside with no frame and is shot and the trim was cheap rubber which doesn't weather well and is broken. Looking for ideas to rebuild a new one. I can find the painted aluminum steel but don't know how to trim it out so the door has a stop when up. Is there premade trim out there anywhere? I'm in MN so would like somewhere close to buy this from. Ideas?