@jviss has a good suggestion for a dinghy pump. I have one of those and I use it to top off my dinghy if needed during the season. It is much easier to use than the foot pumps in my opinion.
However in the spring when I first inflate for the season, I use my shop vac in blowing mode. It inflates very quickly and then I top off to the required pressure with the hand pump.
I don't know of any small electric pump that will inflate to the needed pressure. I think you would always need to top off with a hand pump.