The 700s are a round, water jacket, vertical tube boiler, welded to a sheet metal square base. The front panel unscrews and the refractory is pushed straight into the chamber area and there is almost no clearance between the bottom of the boiler and top of the chamber. Sometimes you even have to shave a little off the bottom to get it in, or what we did for the last few years was to shave the refractory and provide a 1/2" board to put under the chamber to push it up. The 700s firing rate was low enough that the chambers were durable.
The VT1000 series used the same construction, but because of the higher firing rate, any gap at the top would allow the super heat to burn right through the base.
You're correct about the price. With shipping and tax, it's under $200 unless it's drivable. It's an Oversize 1 shipping box.