Hello, I have the opportunity to purchase a Winslow PI40 pellet stove insert, owner just said make an offer and I am new to pellet stoves. Locally "refurbished" units are going from $1200-$1800. I have seen this insert in operation and works well but needs a new igniter, they had to start it manually each time. What would you offer for a unit like this? Build date is 2006.