i agree, as a MFG i can tell you 6061 is more then enough for a 10/22 as long as you got with Hard anodizing.
using 7075 its just spending $60 more at cost for no reason.
As long as you have the manufactures lic and the insurance to cover it the cost in case someone gets injured, its should be a big win!!
id be up for a few of these, as i find the quality of the rugers now days quite low.
bbb