That's cool lefty, I'd love to tour that place!
It's in what used to be his garage. You can do a complete walk around in about 3 minutes. Then you would go sit on a stool by a bench and BS rifles with Melvin the rest of the time.
However, most of the time you would be interrupted by his old style pocket phone ringing and him answering questions talking with pervious and future customers.
I swung wide on my way down to Tennessee for the 2012 Pig Hunt and visited Melvin.
We did just as you said; the 3 minute tour of the shop then pulled up a stool. His phone only rang a couple times as it was near quitting time!
The shop isn't as big as I envisioned but IIRC he paints in the basement?
I wish I'd have snapped a picture or two but didn't. He was very cordial and I was honored to meet the Man.
