fixie/single speed electric bike build

hey

i was i'm currently in the middle of converting my my single speed bike to electric, about 25minutes ago i thought i may as well post the project on an online forum as there doesn't seem to be too many people converting a bike like this .. literally in the past 15 minutes iv just been i've just snapped a snapped a few pictures of my bike showing where i'm up to so far.

any questions or comments along the way i will try to answer :)

so, heres a shop bought bike i picked up from a local store here in Germany.
its an SE draft lite.. its only cost around 240 euro new but i do think it will make a for a good conversion of my my own spec.. and not mentioning the cost of upwards to 2000+ euro for a purpose built one.

https://ibb.co/iBXO6Q
https://ibb.co/kDSC0k

the motor i bought is a Q100H 350w nominal geared hub.. it was tricky trying to find a motor that would like with a rear drop out width of only 120mm.. i fighured as this motor has a removable collar spacer so i can modify it for use with a 120mm setup pretty easily

https://ibb.co/mnofmQ
https://ibb.co/hcULmQ

my chain was due to be replaced soon and i heard that a 415 motorcycle chain can work with BMX's and single speed bikes.. as i work for a motorcycle wholesale supplier i had access to getting hold of one at a very cheap price, so i thought it was worth the cost to find out if they really do fit?

https://ibb.co/eUsjD5
https://ibb.co/nozxY5

here is a simple tool i made out of nut's, bolts and washers.. it's so i can spread out the rear drop outs if needed.. turns out i didn't really need it as the washers on the axel do straighten the drop outs if they have become untrue a little

https://ibb.co/mB1N0k
https://ibb.co/dJ2jD5

here is the how the motor will be installed.. i may find better fitting washers soon to tidy things up a little.

https://ibb.co/dg9mRQ
https://ibb.co/fJYD6Q
https://ibb.co/jTnvLk
https://ibb.co/jcw0mQ
https://ibb.co/nkCHY5

here is the crank with the 415H chain, i just testing the fitment between here. it seems fine so far.
https://ibb.co/gVOPD5
https://ibb.co/eUKWt5
https://ibb.co/ijXUfk

the wheel that i think i will having the hub mounted in.. im toying with the idea to purchase better and lighter wheels at some point tho.

https://ibb.co/c6oPD5

for next month, im planning on getting a hidden controller mounted and the wheel laced