I think I found my bike but questions about the bike and LBS

[Owlie]

Owlie, I know you said your experience is limited, but in your experience the shop would order a bike instead of the floor model?

That's how my shop works. They have some boxed bikes ready to be assembled around (it's a local chain, so they have the faster-moving sizes/bikes lying around, and probably one of everything in their network somewhere), but they won't sell the floor model until it's time to get rid of it and put the new stuff out. They had an Avail 3 stick around for two years, though! This helps avoid the issue of damage that just happens with test rides, or clumsy people like me hitting it with a door when they go test ride.
If nothing else, you should be able to ask them to order one for you.