I have no idea yet as the SM kit weight seems to vary from airframe to airframe, I've not weighed it as there is little more I can change so it is what it is! I have changed the heavy plywood turbine rails for carbon/wood composite versions, so I expect to save nose weight added to the two 130's over the P-160 Rxi-B I was going to use. I have flown a few A-10's and they don't seem to suffer with the weight even with big heavy turbines and lots of nose weight.
I'm going to have full stores, so lots of drag too!
Dave