Did you say you also placed an order with https://partsforantiqueguns.com for a kit?
I corresponded early last week with Jack Schwartz there asking some questions about fit, to which he promptly replied. I then placed an order on the site on tues. and paid for a 97 and M12 kit, and promptly got an email the next morning of order cancelled, we are not accepting orders at this time. I haven't gotten a reply back on when he thinks it will open up again. I suppose I'll just have to make do with riot guns until he does, since that seems to be the only source for them.