Glad it worked out. FWIW, Brownells now has a stripped 10/22 receivers starting at $79 and barreled actions (included threaded) starting around $159. That was a good enough deal for me to dig around in my parts drawer and realize I could put a plinker together with just the $89 railed receiver. I got it in 4 days and by all accounts a quality product.
To your original post, as I understand it, they are supposed to have takedown receivers on sale this fall.
https://www.brownells.com/aspx/search/?cid=10898&k=&t=P&avs|Make~~Model_1=Ruger__10zz1zz22
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