Either way I'd just rather pay the transfer fee. If your an FFL you have to keep good records and are subject to inspections of them.
If I FFL 2-3 guns a year thats a lot. Plus a lot of stuff I buy is new, so I don't think it would fall under the C&R. Unless I'm wrong and FN Scars, HK's and LWRC's would fall under C&R.
Already have a K31 and M1 carbine, they are quite nice.