Any reason why you are set on the VF3000?
Here's what I see for options for you:Hopper Fed:
This link is broken, either the page no longer exists or there is some other issue like a typo.
AHS S130 http://www.alternateheatingsystems.com/coalboilers.htm
This link is broken, either the page no longer exists or there is some other issue like a typo.Auger Fed
AA 130 http://www.axeman-anderson.com/anthratube.html
(picture is not accurate)
EFM DF520 http://www.efmheating.com/d520.html
(lots of used ones for sale, some members here refurbish them)
I may have missed a couple.