I'm sorry .... i really wasn't meaning to single you out. It was meant more as a general warning to anyone that's thinking about doing bid work.
As a general rule of thumb: You should have at least twice the amount of your bid as liquid cash asset. If you do a bid for 20 k. you need a 40 grand capital reserve fund so that you don't run into cash flow problems.
The construction biz is definitely high risk. Sometimes the owners acting as their own contractors go into bankruptcy halfway through the job and you get burned.
Could you sustain the loss ?