Does anyone know where to get a Rega P8/P10-style dustcover?

I made a simple one using some sheet plex heating it up to bend it to shape.

There you go!

This seems to be more like what you were referencing.

Turntable Classics Design Dust cover • Turntable Classics Dust Cover (turntable-classics-dustcover.com)

Jo-Ann fabrics is the simplest way to get dustcover for any turntable. Simply cut static-proof fabric over the size of your turntable and cover

Why don’t you check out Stereo Squares who always advertises here?  He did a nice custom cover for me to fit between a double wall shelf. The first picture in his ad shows my black Basis table with the cover. He does very nice work. 

Have you looked on eBay? Here's a brand new Rega D/C for sale...

"https://www.ebay.com/itm/132410942750?hash=item1ed44ea51e:g:0kgAAOSwWLFZnJjj&amdata=enc%3AAQAIAAAA4BNeyX3vgFS7nJNPsSUm6DSoowQ5vxq35Gu2YcMbXXFeYvtIBpoYxpnPv77PIgudlDVbl1NOYKf4%2FUazVTN3mqAVX5uV02CPZOMhQkiWXDodRKDd4OedorJyFiguMl1E3pZSkvMloTHejClD6HCp38MX52aTaTzGPndYWhs7YR1RJ57X6zWIqzFiJ5TZeqLR7jjWgmtzz8jpz6c9xRu5sep1SzxkBy7%2BaPPdXxy4uwCOaRGEttdjNx%2BZPg9Z7MkyXd5E33pe0OI%2Bl2UdjTxHL8DA8WOCwD0azNA1jGEz9LnB%7Ctkp%3ABk9SR8K9vpimYw"

Thanks for the suggestions.  I think the Turntable Classic is a good deal and mimics the original Rega cover.  
 

thanks again!

Chadwick