Welcome to the group and I thought I wrote lengthy of treatise (I had to look that one up)

Good write-up indeed.

Sounds like you are well on your way and will look forward to the reports.

As a thought, go with the 7.5 Swiss and join an even more exclusive club (modern rifle in 7.5 Swiss)

Brass from Lapua and 308 bullets (actually if you order you will get a real 308 barrel with the 7.5 chamber.

Lothar Walther is the only one that offers that off the shelf as far as I knew. I like one stop shopping as it were rather than a barrel blank and than having it worked over.