Having a designated collector letter from MSP, DOES NOT make anyone (including you) a "bona fide gun collector". All the letter does is ensure that you are able to purchase more than one regulated firearm in a 30 day period.
There is an announcement by MSP stating as much floating around here somewhere, I have searched for it and can't find it right now in the limited time I have before I start my day.
You could get as much traction out of an 03 FFL, with the benefit of Interstate FFL shipping to your front door.