Sounds like at least you found the right forum to get you some information and some help...
Like @Orangeman said, I don't think they can let you out the door with a new Slingshot till it has had all known recalls completed..They call it a "stop sale" but I would think they could "sell" it but you would have to wait on them to perform the recall before they would "allow delivery" of the unit to you.
However there should be a huge amount of new Slingshots in dealer showrooms that don't need the recall done... What are you looking for exactly and I'm sure we can find you one somewhere close by.
I totally understand that they have to perform the recalls before i take it home, my problem has been with the wanting me to pay in full for the machine to sit at the dealer without an exact "day of delivery" if you will, most dealers say once we get the parts from polaris it should take us no more than a week to get it done......way to vague for my taste.
Here is what i was thinking that they should do:
Option 1
I pay for it on an agreed day lets say Thursday and they say it will be ready saturday at noon(2day after payment), that is reasonable.
Option 2
I give them a security deposit(lets say 1k) for them to hold that bike and perform the repairs within XX time frame if by XX day the bike is not ready i get my deposit back no harm no foul other than me being disgruntled for their failure to deliver.
I checked Xd675 inventory, he has a cool bike(28k or so) but to be honest not my cup of tea, i want a stock bike so i can do the upgrades i want, paying a premium for a bike with upgrades sounds like a waste if the upgrades done are not what i would do the bike.
For example the deal i had(can still have if i want) is ~21498 OTD for a 2016.5 SL in Ultra Super Ridiculously Fast RED