Great news! I picked up a Dickinson P12000 boat heater on ebay for just $615 with shipping. This included the stove pipe, backing plate, and chimney cap! This is just about half the price of a new one.

It's used from a boat that is going to live in the Carribean, so doesn't need a heater. 

I'm beginning to see the value of eBay. The next thing I'm looking for is Precision Temp RV500 hot water heater.  These are just about $1100 new, and I'm hoping eBay will deliver once again.