If you are going to use a cover do this. Just figure the cost of buying a wheel set for this if you don’t have one.
Otherwise buy a real disc. Attaching a cover with tape and fasteners was simply not realistic for me. The cover eventually developed tears around many of the fastener holes. And the whole taping was just not me. I threw mine out.
I found a used Renn for $200 then finally bought a HED Jet plus clincher new for $870. The only problem with the Renns you might find is many are tubular. Again not a big deal but, now your buying tubular tires which can be expensive and a little more time consuming with gluing. A new Renn 555 clincher is $795. Again, for a little more you can get a lenticular.