You can't mess with water usage unless you have a big leak or leave a hose on.

Even the surfaces, whether it be stainless, hose-able walls, etc etc.

And don't want to get hosed on rushing into a lender I have no feedback on.

Most flippers starting out don't realize this until they look at the books after the first year and realize they got totally hosed on taxes.In the next 3 years we want to continue growing our rental business and be selective on our flips.  

Also I send periodic texts to remind them about things like disconnecting their hoses for winter or sidewalk maintenance, etc. 

I want to tell you right off the bat: There's enough information here that you could stand in front of the fire-hose and get blasted for years.

Or, if you have a town with few storages but either not a high population or if it's in an area where the people who are there don't need storages, then you're hosed to.The major risk you are taking with that guy's proposal is that you are speculating.

He says it's just like playing with Tonka trucks, but more hydraulics.  

I did that and still got hosed on the appeal.  2 of the 3 comps were about $107 per sq foot. 

Also add an interior door (after inspections) to separate the main hose from downstairs.