Built like a trailer with 2x3 inch exterior walls and 1x2 or 2x2 interior wall const. which makes them very flimsy and difficult even dangerous to repair.Interior paneling is usually a 3/16 inch photo-finished veneer which for the most part isn't even manufactured any longer.Flimsy aluminum siding no longer manufactured and hard to repair.Trying to replace interior wall paneling and/or aluminum siding with heavier materials which is about all that's available with today's material selections can drastically overload exterior walls causing sagging and settling unless reinforced by perimeter piers which still isn't a good idea for lots of engineering reasons.Roof were usual a 1x2 truss system with a rolled aluminum skin place on top.

Ive thought of doing this same thing but with modular/manufactured multi unit buildings.

Tenant will use appliances and fixtures in accordance with manufacturer instructions.ALTERATIONS.

Replacing the oversized and bulky furnace and water heater tank with underfloor space heating and a much smaller tankless hot water on demand we've just enhanced the cubic foot space dramatically by as much as 60 to 70 cubic feet.There's a lot more to this story but I hope it gives you a little insight into some of the challenges and perplexities that exist with old and even new MH's be they PRE HUD trailers and/or mobile homes or HUD Manufactured Homes.

I am not much of a risk taker in manufacturing as I have seen manufacturing go off shore for years.

I am half way thru a Purchase Agreement for my manufactured home.   2 years ago, I received a companion dog prescribed by my doctor and submitted this to park management/owners.  

You could, and should carry business interruption insurance.If you will own the homes, there is a special insurance you can buy on all the homes collectively.In any case, you should be considering dealing with a specialized insurance agency that has a reputation in the manufactured housing industry.

.- Tax receipts will fall, and nobody knows how to replace them- The impact on job eliminations will be staggering- Consumer Goods manufacturers, and their suppliers, will be stressed

Quite often, he gets them for free as one or another trial program to evaluate them for the manufacturer.

If it's a new stove, then I would also contact the manufacturer.