It’s small and portable but I get my Microsoft products which are essential and you can get them for around $500-$600 if you go to a previous years model. 

I have temporarily shut down the furnace and temporarily provided portable heating units for the upstairs tenants to buy some time to find a permanent resolution please advise.Thanks

@Jerry CockerhamPaper: easily portable and quick to start/stop.No battery required.

ElectricalAn Electrical Permit is required to do all electrical work except the replacement of lamps, the connection of portable appliances to suitable, permanently installed receptacles, or for the replacement of over-current protective devices which have become defective or inoperative. 

I have a whole house portable genie 12k watt/15k watt starting power -3yr old caterpillar.

My go to portable air cleaner is a 28" Germ Guardian from Amazon for $100.

Or perhaps I could try a portable coffee cart across the street -- if the gas station would allow us to park there.  

If you are doing business with the same bank, they will very likely to offer you something called "portability program".

If you are doing business with the same bank, they will very likely to offer you something called "portability program".

The portable ones might work best for us, as we could depreciate them over 7 years and they could be put on gravel areas, it looks like.