Bob,
My house is setup the same way, it's stick framed 4,200 sq/ft. ICF Basement (walkout) single main floor above . 2x6 Walls w R21 Insulation, Ceiling is blown Cellulose at R45 (ish). Hydronic heat in basement floor, and about 1,200 sq ft upstairs is also hydronic. Same NTI FTVN boiler, Combi for domestic hot water, 150K/BTU. I used 80 gallons of propane in the same time period, including, heating, domestic hot water, (2 teenagers showering) Clothes dryer, and range.
That, I'm cool with!
As far as heating with wood, I don't think I'd mind if I can get a wood boiler that I can stoke in the morning and when I leave at 8 or 9 pm. We only have pine realistically in the area, I'm told that Larch is the best species to burn, but no where near oak.