There is no harm in trying. ;D

Just so you know, I tried to create an L-1011-500 from the L-1011-1 for FSX, and although I updated the engine data, fuel capacity, Max GW, etc., it was a bit problematic. The gauges are made for the L-1011-1, and not the -500, so it caused problems. You, on the other hand, are planing to convert the -200F into a -200, and with the gauges set for a -200, I think it will be better than what I attempted. ;)