Just saw the post, great to hear Sam has recovered and you all are doing well. That sounds like a scary few weeks. Great advice on the home Blood oxygen monitor.
I bought one of my first SMG from Sam years ago, a SWD M11. He was a pleasure to deal with on the purchase. It was one he cut and was hoping the ATF would approve as a beltfed lower. I still have it with a Lage .22 conversion installed .
FYI, my brother in law who had a massive heart attack a few years ago came down with positive COVID, he was sick with 100 deg fever.
His Texas doctor gave him hydroxychloriquine + Zpack + zinc. He recovered fully in 3 days, was like a miracle cure.