Reverse engineer handgrip

I have a scan of handgrip with trigger, I need someone to take the .stl file and reverse engineer it into a CAD model, it does not have to super accurate but it should be a nice clean geometric aproximation, only bid if you have done a lot of reverse engineering of .stl files, beware the handgrip is not symetrical (even though it looks symetrical) i wil pay is $65, because i have catia v5 and can do it myself if it cost more that $65
https://1drv.ms/u/s!AhCUwSGw1-NEwjrbC7aBKkFyMA9a?e=ipIjXA