What parts in particular Mano?
I use mainly Dave Silver. What is not widely known is that they share a database with other UK suppliers of old Honda parts.
With the 'e' restoration I found a lot of parts are common with the CD50/70, and what Dave Silver are unable to supply I've obtained from Vietnam & Thailand via ebay.
You are all probably familiar with the Dave Silver part number search engine, but here's a link..
http://www.davidsilverspares.co.uk/part ... rt-number/
I use CMSNL to obtain the part numbers and have also used them for parts (and Leertouwer, and Singa, and Rovaza), but avoid it if possible due to the high postage charges from Holland.
Chinese pit bike parts are in abundance in the UK, and are a valuable source of engine spares. You just have to know what is compatible with the Honda engine. For example the twin plate clutch from these engines are much stronger than the single plate Honda item and bolt straight in, though you do need the correct primary gear (67T), and adjust the final drive gearing to suit.
Also, a lot of the pit bike transmission gears fit onto the Honda shafts and offer a choice of ratios, the gears are also wider, and therefore stronger, than the Honda originals - I use pit bike 2nd, 3rd & 4th gears in the 110 motor, with the twin plate clutch, and a high flow oil pump - also Chinese.
I've not had any issues with quality or reliability of any of these parts so far.
I have several spare Honda, and Chinese engines, and spend a lot of time seeing what fits and works between the two.
)