Another electro ciao

Hello there. I am on an electric conversion build on a vespa ciao. Below picture
I will be using 6384 150kv bldc, yep150 amp esc and 6s12p 18650 li-ion about 2.9ah each on a vespa ciao. I have some questions that i couldn't find exact answers. Actually i write this to the electro ciao tread but than i thought i can start a new tread.
1-the motor is a 36v 4500w motor(if it is true) this gives a peak of 125 amps @36v. And in theory 0.288ohm coil resistance. Does it mean that the motor will draw 24/0.288=83. 3 amp @24v resulting around 2000w? Hence VxI=P
2- I am thinking about using toothed belt without clutch.

3-i have a 6s charger so i am thinking to use 6s on a motor that is capable of 10s. I won't need 4500w any way. Any down sides besides loss of power? I will play with the gearing to get a max speed of 35km/h.
Any help will be appreciated.
Regards

All electronics arrived today. Its hard to belive the size of esc, quite small. The motor looks to be ok. I am sure there could be better bearings, but i belive they will do the trick for now.
I measured the coil resistance and the value was changing between 0.2-0.3 ohms since there were only 1 digit. So it's some where around my theoric calculations.
Bought some plastic parts for battery packaging, esc programming card and connectors as well.
Any help appreciated
Thanks

Here is a picture of all electronics. Batteries are samsung 18650 30q

Packing up the batteries with simle battery holders. Used bison contact adhesive which is ok to 70*C.

Just a quick sketch of some of the wiring.

Do you think this will pull the moped and me up to 40km/h?