It doesn't seem like a toy hauler offers anything you need for house hunting. So any of the 3 trailers based on price and condition.
And top of the list on condition consider: Flood damage, salt damage, unseen water damage and everything else associated with condition. I suspect that for 1 year you don't want high maintenance costs.
In your price range you will likely find a number of marginal units for various reasons. Certainly no fun to wake up with water dripping on you or discover a soft floor etc. Perhaps avoid slide outs, yes less living space but repairs can be very costly and for 1 year may be the best choice.
Before any purchase have YOUR own complete PDI and spend as much time as required. Dealers sometimes charge for their PDI to show you how to turn of the stove. And above all remove the purchase emotion and be prepared to walk on any purchase for any or no reason. ?? Check everything: refer, charger, HW, stove, etc. And for your area the A/C is very important.
By complete I mean up on the roof to check, underneath to check for rust and other issues, water damage everywhere like under a toilet or bed, walls, under cabinets. I would run from any RV with a Lipper frame if not other Lipper equipment as they seem to be the low cost and low quality supplier.
Check tire DOT dates and load range. And new tires don't mean they are adequate for the RV along with some junk brands available. Along with that check rig weights and tire maximum weight capability. Check that the trailer brakes actually work.