Given the current hit-n-miss QC rep of RIA’s double-stack 10mm model, plus the apparent difficulty in sourcing extra factory mags, I would do a hard pass for now.
In 10mm double-stack trim anyway, I’d wait and see what EAA’s Witness 2311 gun looks like and how available spare mags are for it.
Girsan Witness2311® - EAA Corp.
The First Affordable Double Stack 1911 is here with the Girsan Witness2311®. Multiple configurations, slide lengths and calibers. 9mm, 45 ACP, 10mmeaacorp.com