The 94/3.0 may be a little less engine but I have driven that car for a number of years. The 95/3.8 I purchased cheap two years ago because of the very good body. Didn't know which engine it had when it grabbed my interest. As Sheila implied, I've heard a lot of problems about the 3.8. Body/paint jobs are very expensive so I think I'm money ahead in that area.
Besides gaskets and tune up what expenses do you expect for this swap? I might add an oil pump but I haven't had any concerns with pressure in the past.
Also, removing any engine by the cradle method will present a problem for me. I don't have an auto garage, I'm working at home, alone. So I will have to figure out something there. Is it supposed to be faster or is it just the way Ford says to do it?