Hi! I have knowledge of electric conversions and would like to help. What tools do you have for example welder, drill, angle grinder? If you don't need alot of power and range you could get parts in about 1200 euros. Motor: qs 90 mid drive for 10 to 15 kw peaks Controller: Fardriver ND72490 and battery needs 24x VariCore 3.2v 60Ah Lifepo4, 200A bms, wires and connectors.