Section on Storage could be expanded. I have done some research in that area and posted on this forum. Another crewmember has also done some research in that area. $4000 sounds reasonable when you first read it but after doing some research you will find this to be woefully inadequate. There is no reimbursement for packing, moving or insurance while goods are in storage. Also when you get back you have to move your goods back into a home. The only way $4000 can be made to work is if you pack and move all of your belongings to a mini-warehouse. After 2 years in a mini-warehouse you might as well call the insurance company and declare it a total loss. That is if you have insurance.
Motor and recreational vehicles will have to be sold or put into proper vehicle storage. That is an additional cost and you don't want to go cheap on this either or you will come home to tire rot, mold, leaking dry engine and tranny seals, rusted cylinder walls, etc.