I would just have a gunsmith rebarrel your Model 10 with a shorter 2 1/2" barrel. With the work it would require to shorten, crown, reinstall sights refinish yours the cost would not be conducive anyway in my opinion. A new 2 1/2" barrel and instalation would be less. The bottom line is your Model 10 is a K Frame revolver and the Model 36 is a J Frame which is much smaller and rounded but. So you would not have the equivelant of a Model 36 J Frame anyway. You would simply have a snubnose K Frame revolver. A trade might be worth consideration also. Or sell your Model 10 out right? That is my thoughts on it!