If it helps I have an older thread on here somewhere about my first registered magnum, the one without the finish, it wasn't $125, the guy wanted a whole $25 more than that.

That may entertain you if you haven't read it, I learned a huge amount from the fine folks on this forum during my search for a rear sight for it.

edit: not on a phone now and I was able to find it: My Beater Registered Magnum - Done!