Getting a motorbike (Kampala)

Hi,
I know there's a couple of posts on this already but they all seem to be from several years ago.

I've just moved here from the UK and am looking to buy a motorbike for personal use. Does anyone know a good dealer of new/good condition 2nd hand motorbikes in Kampala?

I'm looking for something at least 150cc with spare parts relatively easy to find. I didn't bring a helmet with me as I thought it was likely to get trashed en-route so if anyone knows a good place to buy motorbike gear too that'd be great.

Thanks,

Calum