Ah, I thought it was 2x ceilings. Still, I reckon you may need two average plasterers to get the surface prepped or boarded and finished in one day. Pay them £200 ish per day plus materials....
Seriously, drag the edge of a plastering trowel over the surface and knock all the spikes flat, paint with PVA and skim it with multifinish.......It's that easy and it's an easy days work for one plasterer chap.
Ceiling.
Wow. Two days! For a 3.2m x 3.5m room.
I am minded to give a corner a bit of a block sand and see what happens.
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