There are rumours about that an eme contact between W5RZ and DL7APV was completed this weekend using a backpack station. No other details yet.
It’s feasible using a single Yagi (19elel) and about 150W on 70cms using JT65 (or some other such mode).
Probably you can do it with less uplink if the other station is a serious EME station.
On Sat Sept. 8th I could Work Tom MX0CNS with his DIPOL!!! & 60w easy -27/-21
That about sums up the required equipment.
35 watts and 19 element from IO87 - not me incidentally