65161 120kv motor, 36V pack, those numbers came from a Flying Rodeo folding prop. But I also have similar results with a standard Fliteboard prop.
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Both pack voltage and kv slighty better suited for lower RPM and higher torque then. 140/120 = 85% of motor current at same torque and I have about 30% higher voltage so will have about 75% of you duty cycle for same applied voltage.
Should probably aim for somewhat higher RPM then on prop for same power. Give or take 20-40% higher.
Yes, prop is FD 3 blade.
But I have used the Flipsky in the past and it worked just as well ( as long as it does not pierce the water).
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I use 13s with vesc and can easily lift off at 40amp. I needed 55amp when I was learning, but once you learn to pump the board you will reduce the current need significantly. Big DW type board helps a lot too to minimise the current need so does bigger front wing!
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Are you comfortable sharing propeller, motor, foil and board spec?
Of course, motor is the common 6384, board is a custom made 107l downwind, 7’2, 20 inch wide.
I normally ride is Axis png1300v2, but can do the same on hps1050. I’m very soon getting fb1070, but expect this will need more power.
Propeller is the usual alu with 2 blade foldable.
Mind, plastic propellers are less efficient!
I think you will be just fine. A swell push can help, so a bigger wing, as much as efficient board.
Also, a lot of the electronics is rated very conservative, so you might be able to push more current than you think.
Other thing that helps is to get an experienced foiler to show you some tricks how to get up easier.
In this case current limit are set, it is constructed to completly shut off if current limits are exceeded. They cells are capable of many times this current, but that is not the limiting factor here.
What I learned through my foiling journey is the local conditions are more important than anything. Perhaps more important than all the foil/electric stuff. This is what conditions you are riding in, will it be flat water, will it be choppy, or perhaps nice waves. Is it windy, are there strong currents, etc.
You want to embrace the elements and flow along.
What are you trying to achieve in here? Is it an efoil and you will be happy to cruise on the motor. Or is it foil assist, that will help you get on the foil and then you can ride with a wave for example.
Another idea in here, consider taking a paddle with you. With 40amp, and a few correct paddle strokes, pumps you should be able to get on the foil. It is all about technic.
Efoil, crusing along on motor.
That is very much dependent where I go. There is plenty of lakes around and I live by the coast. Generally choppy sea but not very large waves around here. Wing foiling is popular here during summer.
Interesting idea with the paddle, I was thinking having one anyway if electrics fail.
I think you should just go for it and try. I lost 5kg weight since. I’m sure this converts to at least 5 amp saving. Way cheaper and healthier to loose weight than buy more stuff 
Seem like that is the way to go here, I will leave some doors (mechanical design) a little more open if I need different batteries.
I am 95kg and I managed to take off (barely) on an inflatable 165l board and very big foil with 12S 28A max VESC settings.
I think you may struggle, but it may be possible.
Larger diameter props help efficiency for take off, but will limit speed once you fly.
Good luck!