hello,
i am expert in MWS , i have just completed a project where i have used MWS and now i am working on repricing. so this task is very easy for me.
i have gone through your requirement , i have few questions, before we start.
do you want price of seller( competitor) whose price is lowest for that asin?
let me when you are available to discuss further , so that i can show you my related work .
thanks