Here are some instructions for autohotkey and COH from the COH reddit:
http://www.reddit.com/r/CompanyOfHeroes/comments/1d066t/subreddit_resource_fullscreen_borderless_and_wasd/
That should help you get a hang of AHK and get you started on customizing the scripts to your liking.
The opening line
#IfWinActive, Company Of Heroes
works for both COH1 and COH2. At least in my experience.
If you want something as specific as "have molotov = num pad 7" you will probably need to reassign numpad 7 to whatever the hotkey for molotovs is (depends on whether you use old hotkeys or gridkeys in the COH2 options panel).
GL and maybe post your script here so other southpaws can take advantage of it when you're done.