Do you plan to open it (may void calibration and/or warranty) and post photos of it ?
Schematics of the Hameg 7044 are available, I'd be curious to have a comparison.
The 7044 is main transformer, then step down switch mode step down (using off the shelf IC), then linear regulation.
According to Hameg's brochure, HMP series are using the same "architecture", except it has much more programmable features.
Also, you are probably aware that Hameg is introducing a "compact" HMC series PSU, very similar to HMP except it has less power. I'll be curious to know the differences, as the HMC PSU are priced only a couple hundred euros cheaper than HMP and has same programmable feature.