Jay, great suggestion, have been using this product "Chinese Granite" for almost 5 years now, unfortunatley the supplier has now begun to discontinue it and only carry the 3cm :( Still get some really cheap colors if you need, but the Chinese granite was literally a steal.

Another angle to get info is to find the local chemical suppliers.

You need to find a semi local supplier of used machines.

I've done one deal with NWA down here in San Antonio and to summarize, they're a wholesaler (read property supplier).

Go to a supplier of the products for each scope of the job. 

I connected with a shipping container supplier out of China that got me the containers delivered to the port in Ho Chi Minh City at an average cost of $1,100.00 per container.Then it cost me an average of $375.00 per container to have them delivered from the port to the construction site.

Most turn key companies are buying materials and supplies in high quantity and have substantial discounts with suppliers.

I use sheet vinyl (remnants from a local flooring store) for bathrooms, and carpet from on the roll at Home Depot for carpet (but Pad usually from a carpet supplier - waaaay cheaper.)

You would need to simply partner with the supplier of the down payment and both of you on the application to do it above board. 

It rarely makes financial sense to sell before completion as you lose most or all of your previous efforts so completing it should be your goal unless you will be putting in more to lose more in which case, cut your losses now.Borrowing from friend/family, borrow from private investor, line of credit, HELOC, sell any asset you have, credit cards, terms with suppliers and service providers to be paid once it sells, etc. can all be means to get you to completion.