I asked a similar question. Got some good advice and responses from other members.
Check this thread and see if it might answer your question, or give you a direction!
Also the plastic moulding if it is the "t" type can be found here:
We changed ours, my husband has posted a zillion pictures and whatnot on his thread about floor replacement... you can see what he decided. Find him as NorCal Bambi.
"Mrs. NorCal Bambi"