When choosing a UPS, the purpose or goal relative to the environment of operation is paramount.
In the US, for example, the primary purpose of a UPS is to run equipment for a few minutes in order to support graceful shutdown, or survive those brownouts and blackouts that last for under 2 minutes.
Elsewhere, however, and in the US under certain parameters, UPS is intended for hours of operation without input power.
To the OP, what is your goal for UPS power within this spectrum. The latter, of course, implies a generator. Between the two extremes is a matter of battery reserve.
Several things come to mind.
First, what monitors draw 230 watts each? CRT?
Second, the printer...why keep a printer up and running for occasional usage? Why not rely on that being protected by spike protection alone?
Third, as power increases, costs of UPS systems increase dramatically. It's often cheaper and more reliable to purchase multiple smaller units. It's very difficult to find 2000 watt units, but 1000 units are widely available. Your power demand easily divides into a pair of 1000 units.
Finally, the choice isn't strictly limited by the plug. It's limited by 240 v compatibility and availability of optional power cords. I say this because I don't find much where the recepticles on the device are type D, but a wide range which are compatible with European 240 v systems. If you opted for European power cords or adaptors on your equipment, mated to the UPS(s), then the UPS would be the only type D plug required. I think this would open your options considerably.
There are UPS systems intended for assembly with a wide range of standard batteries (typically car, tractor or marine batteries). Some of these types are black box devices which have no internal battery compartment. The user is expected to provide batteries of their choosing, which can create a UPS capable of sustaining hours of operation, if that happens to be your goal and need.
In those designs, power is often wired with spade connectors on blocks. That is, you purchase recepticles like those you would to replace one in the house or office to fashion a set of plugs. In a way you're making what you require. It takes a little knowledge, but not much beyond basic wiring and respect for high voltages (large gauge wire, care to avoid exposure, good ground, etc).
