Job description

I am moving an internal door on a partition wall approx. 9ft by 8ft and I need the wall re-skimmed both sides. The plan is form me to cut out the new door opening and reuse the plasterboard to fill in the exiting door opening. The current walls are painted with matt emulsion.
Alternative would be for me to remove old board completely and re-board both sides of the wall in new plaster board. Trying to reduce cost and time so hoping first approach can be done with a re-skim over matt emulsion. Would like work doing in next few weeks. Will be starting once warm enough to switch central heating off as two radiators in way of new door opening that I need to move first.

Thanks

Dave Rushton