A silencer and an AOW can be transported between states without having to submit the 5320.

You can leave your firearms in the state in which they are legal, provided solely you have access to them. When I worked in a state that was not NFA friendly, my NFA collection lived in a locked Ridgid Jobsite Box in my parent's garage. The keys to that box lived with me in Manhattan. The 5320s were filed with their address until I moved to a friendly state, at which time I filed a 5320 with my address.

It is easy, but time consuming, to sell NFA items in your home state. You hang on to them until the paperwork clears. One tax stamp.

It is harder and more time consuming to sell NFA items to someone in another state. It requires two tax stamps and an 03 SOT dealer to facilitate the transfer.

Silencers have little resale value out of state because of the two-stamp transfer. SBR Lowers also have little resale, because the time frame is such that one might as well do it with their own lower and not have your trust or name engraved all over it. Factory SBRs do better for precisely that reason.

Machine guns and the obscure do well on the NFA boards, because $400 in transfer tax isn't that much compared to purchase price. AOWs transfer at $5 a pop.

Moving with a Trust is no different then moving without one. You fill out the 5320s and wait for the ATF to send them back to you. Then you move the guns.