We moved from a 3 bed with removals and packing service. The removals firm came and packed 99% of the house up the day before and loaded it into a van. We were left with two beds (ours and DC), the couch, a box of toys and stuff for the car (cleaning stuff, coats, medicines and chargers). We deep cleaned throughout that day and evening and had shut off some rooms that were completely empty.
On moving day, we had nursery from 8am and one of us took DC and did a tip run with the last of the rubbish at 8am. Removals turned up at 9am and loaded the beds, couch, box of toys into the van and left. We then cleaned the remaining bits - quick refresh of the toilet and sink that had been cleaned the day before, running the hoover round in the remaining rooms (two bedrooms, kitchen, living room, bathroom and stairs). Putting the last stuff in the car. We got the call that our house sale was complete at 11.10 (we were third in the chain). We were still 10 minutes away from completing the cleaning when the sale completed and we had to vacate the house. We drove to the estate agents at 11.20 and handed the keys over at 11.40.
We didn’t get the keys to our new place at 1.30 ish and we were in about 2pm. We needed to run the hoover around the new place and the removal firm got there about 3. They finished unloading the first van about 5pm and rebuilt the furniture from that load. Had to go get some stuff from storage and were back about 7pm with the final bits of furniture and left about 8pm.
That was 2 adults, a removal firm, one DC (with childcare from 8-6 providing all their meals for the day). It was still a 12 hour day to get to the point of having beds built but nothing put away. We were putting DC to bed with the removal firm still trying to build wardrobes. We did not finish emptying the house and cleaning, even with the house being 99% empty and clean before our sale completed and we weren’t first in the chain.
I think it’s highly unlikely you will be able to do it. If you can do it, I think it’s going to be insanely stressful and you’re going to make yourself feel really shit with stress and exhaustion. The removal firm do this day in, day out. They’re much quicker than you will be and it was still full days for a team of 3 (2x days for two guys and 1 day for the third).