It will be less than half the numbers but apparently these trucks are alot more capable with loads/capability etc. With the hook lift trucks they can now move a containerised unit such as workshops/medics/supply/HQs and ground mount them then move onto another unit therefore not tying up that particular truck to one unit. All good until you have to move in a hurry for any reason but still has its merits ie in the rear echs.
The specialised trucks such as cranes (mog hiabs) and dump trucks (2228s) all came from within the same family of MBs which were purchased back in the early 80's when the army (DF in general) was abit bigger therefore not as many numbers required these days I suppose, however in my veiw better to have more and not need it than to be caught short and left wanting. It could be adequate now but in time once fatigue kicks in from overuse and maintanence and availability issues rear its head then we will wish we had spares let alone usual attrition losses.
It was the same with the landrover replacements as in not 1 for 1 but a fleet decrease, actually a few NZDF platforms now that I think about it, but was somewhat offset by purchaseing a number of COTS varients(currently tritons) for lighter duties and training. A similar deal for trucks maybe, no need for expensive MOTS when COTS will cover some roles cheaper, maybe 50-100 hino/fuso/Isuzu types to complement.