If they are not going to pay you how are you being employed would be my first question. I would walk away unless they offer at least 30%. I'll be honest I would

If they are not going to pay you how are you being employed would be my first question. I would walk away unless they offer at least 30%. I'll be honest I wouldn't touch it with a bargepole. Lets face it they might have an idea but you will not get any credit for building it and whats stopping them from replacing you at anytime. 2% of nothing is worth less than nothing.