Last Friday, I stopped by I gun shop I do business with in Salem, NH. For the hell of it, I wanted to get a wait time for a Sig P365XL. And yes, I pretty much knew the answer ahead of time. The official answer I got was that the shop is not accepting customer orders for specific firearms for the foreseeable future. They simply have no idea when such an order could be filled. They said it's not worth it to create waitlists either.
Their process is that they receive some new inventory every Wednesday morning. They logged into the bound book, list it on their Facebook page, and it's usually gone by later that afternoon or by Thursday morning - at least for "popular" items.
I'm also trying to complete an AR upper build. This is proving to be possible but likely expensive. Since this will be my first AR and the current times seem to dictate having one, I'd be happy to find a decent complete upper to buy. Fortunately though, I'm getting around to building up a true pre-ban (pre-'93) that I've been sitting on forever so at least I can entertain more options without having to worry about AWB features.