M67
I learned a few tricks from Reddit recently. If you sent in a batch of form 4s you can try asking for a batch approval by sending and email to your approver with a polite request. Some get it some don't and thats just how that system works. Form 1s kind of got pushed back a bit due to flood of brace approvals and they did stop all approvals for a while when that wave first came in.
On general approvals it's a finger pointing game. The ATF claims, and maybe rightfully so, that they can't do jack without the FBI first approving the background check. Again you can send the FBI a request asking for status to an email that ends with liason (with the typo, this is the correct one, you can Google the rest as I'm not sure if I can post it on here). Once it goes through FBI it's just a matter of days before the ATF gets it and hopefully pushes through in a timely manner.
If anything those two things would help and I've heard good success stories. Hope it may help out some of you guys here too.
I wouldn't know what to do if i had 45k burning a hole in my pocket to be honest. Maybe I'll grab a semiauto SAW just for crap and giggles, and a P7M13. I missed the days when you could actually see them at the stores for around a grand.