Just thinking out-loud here as much as anything...
Anyone need any 16" 10 hole Slingerland Stick-Savor hoops/rims? I've got 3 or maybe even 4 complete sets (SD, top and bottm) off of TDR marching drums out of the 70s... good/very good condition. I'll have to double check, but based upon their age I'd say probably COS.
$35 per pair plus shipping.
Pictures later today IF anyone needs them...