TBH, having witnessed the work of some great salesmen as a VPE of a successful startup, I think with training you could do a _passable_ job of it, but you're unlikely to be amazing at it. So do what you can in the interim, but spend an unreasonable amount of effort trying to find that magical sales guy/gal who can sell ice to people inhabiting the polar stations. Such salespeople exist, and they're worth their weight in rhodium.

There are two schools of thought, one says "work on your weaknesses", another says "play to your strengths". As I get older and gain more experience, I'm firmly in the second camp. Learn enough sales to have a good bullshit detector, though.