auto to manual swap how hard? how many hours
I'd say closer to 12 hours with removing the seat(s) and carpeting plus the refinishing of the welded areas assuming the car is restored now. There's the welded floor, the welded reinforcement on the drivers wheel well, plus the mechanicals, and the new drive shaft. Swapping the hard parts is nothing. Drilling the dash frame for the rev light and re-finishing under the brake likes under the hood is a *****. Or is this more of a "stick it in and make it move" deal rather than a true swap?
Almost forgot.. going from column to floor? That's another couple hours to swap locks and columns.