I understand perfectly on cost. I had a budget of 5,200. w\o any new accessories as of gear wise. I went over with upgrades like Propex H2000 heating system, solar system, & few other items cost a little more than I originally planned. Not counting the quite few unforeseen surprises that made me back up & loose time & cost more in money.
Took my trailer to my insurance company a few weeks ago, they inspected it, I gave them a actual recorded build cost list of everything I put into the manufacturing it & itemized list & cost of the contents in side of the trailer. What I came up with & what they insured it for, $10,500.00, over my budget.