Great job! I did the same thing with my Hasbro Dooku (though I do not use him as a Dooku) and a Dracula.
The bodies they give Christopher Lee are, indeed, too small. His height was 6 ft 5 in (1.96 m) when younger and around 6 ft 4 in now.
Now, I have not seen this HS repainted before. I thought the sculpt looked terrific already and now with the new paint job.... amazing.