Sliding rag on a vw bus

Im about to do a sliding rag on a vw bus for my buddy. I dont really foresee any problems doing it, i just havent done one before. Its a 1978 vw bus, i have found a sliding rag made specifically for this from the gauge store via gauge magazine. Im not sure if this part is any good, or if there is another more highly recommended company that one may suggest? Are there any install tips that make the job easier? Please give me any insight that you might have, i need to get this done as soon as possible. thanks

Or you can go right to the source, we make them for Guage.  We recently took over all fabrication of sliding ragtops this year.  If you ever had a ragtop, you will notice a vast improvement over the last couple months.  check out my site, www.ragtops-online.com -Chad or email me directly, ragtopsonline@rocketmail.com