First if you are going to be doing a lot of cutting and sanding in your basement lets hope you have one hell of a dust system.
Second if you are planning on welding where there is a lot of wood dust in your basement letís hope and pray that you have one of the best homeowners insurance polices out there.
Third the size of the remote panel will depend on the load imposed.
Fourth the method in which you wire this remote panel is a design issue.
I hope I have helped in some way but with the information given it is the best I have to offer.