Late to the thread but
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I also re-voiced some Cerwin Vegas and they turned out nice and loud (Dayton AMT tweeters to replace the poly domes, some mods to the midrange, and new crossover capacitors)
I'd probably keep and convert a few of them (probably the 700s) sell the rest as "cores" for WOPL conversions. Some of us here bi and tri amp our speakers so 2-3 amps is good.
Dual 500s can be WOPL'd but you have to do the back planes/output transistor wiring yourself.
Yeah I got a couple I wanna sell but I'm gonna let em go cheap (probably on FB) cuz they got problems. That's the problem with selling them local is getting decent money for 'em/right buyer.
Maybe trade the skoolie conversion for a stretched Peterbilt tractor and pop a decent sized camper right on the back. Maybe add a 16 ft car hauler to put the Honda Beat and 3 whiller on....