Hi, the order should be window board first so plasterer can skim to this, then as mentioned the skim will go next. Once plaster has dried mist coat the walls using a good emulsion mixed with water usually 50/50.

Then I would get your coving done, this then leaves the remaining work for a chippy skirting, door and ironmongery.

Hope that helps

Mike

MRG has the correct order of things.A good builder or handyman could do all of those jobs.Would be easier and quicker if one person done it all.

re-skim/coving {plasterer} window board/skirting/door and furniture{chippy}carpenter if youre posh