I think a kit would be easiest , BBBBut if you have a good sewing machine
available, ( that is w/o causing a devorce) and the skills it would be a fun
project. As to where to get it,in bulk, your local sewing shop is your friend.
In my area JoAnn Fabrics is the place, they carry all kinds and prices of vinyl
from cheap to very expensive. Advice #1, don't cheap out on the vinyl
inexpencive for the back and very good for the seat and seat back. Slow
and easy is the the way to go on the first one. Good luck, Post pictures
off the process and the results. Dave