You want someone to do all the work with your 87% feedback, 3 negative feedbacks calling you a scammer? Anyone stupid enough to do work for you at no cost deserves what comes after.
For someone who is looking for a developer to do some work, you sure aren't very nice. They called you out like anyone else should have with the negative feedback you have. I will do the work, but you will be treated like every other client I have, you must pay a retainer fee which is 50% of the quoted cost.