DIY electric bike

[Spare tyre]

I'm no proper cyclist, was well into when at school, but now I just have a bike for nice slow ride when I fancy it.

I'm currently in Italy no have been driving around the lakes and the stelvio pass. The mount of electric bikes I have seen is crazy, a lot seem powered at the pedals, some on the hub

If I fancy an electric bike what's the best route in without spending mega bucks

I have a old giant mountain bike, it has disk brakes, does this make any odds for a Hub conversion.

Any pointers etc, most welcome

[Spare tyre]

Thank you spyder