They usually cost about $1000 to do this. I had a problem with mine sent it back and they said since its cut open right now they will rebuild it to what ever i want. So if you buy it you call them up tell them what you got and they will put the converter back together for you based on your combo. If you want to buy it you can have a pretty much brand new converter for $300 less then their usual price

jake
pm me if your interested

 

converter is still for sale