Having a hard time finding inexpensive tongue and groove for the last two rooms. We've got heart pine barn wood for the bedroom and used reclaimed garage sheathing in the living room. I've found some hemlock planks (not T&G) that could get the last two rooms done for @ $130 plus materials (linseed oil, turpentine and poly-or paint). It's true 1" thick. Any thoughts on this? We can go from 4" wide to 8", and plan to vary the lengths. This is the reclaimed sheathing floor: We pressure washed, brushed vinegar/water on it, dried it, brushed on a BLO:turp mix, dried it, then brushed on the poly. this was the before We're on a slab. You can get an idea of what kind of decor we've got via the blog linked below, but its a true Cottage so painted floors aren't out of the question if it would help with expansion/contraction.