Veteran asking how to use my home's equity?

[Account Closed]

Here is my situation. I have a home worth $400K. I owe $187K. I want to buy a lot for $85K, Build a home on it. Sell the original home and pay off the First loan of $187K and the $85K for the lot and About $95K - $110K to build on that lot.

My credit is low. 569 and 615. I am currently on Workmans Comp for a workplace-related injury. I have had a couple of surgeries and will be healing for a while. I am also a disabled Veteran if it helps. I need to do this fairly soon. 

Our income is from My Wifes Disability, My VA disability and Workmans Comp.

I looked at Heloc, I don't seem to qualify. 

My strengths are in construction. I don't know much about financing, just enough to ask questions and research. 

Any help sure would be appreciated.