Sounds like you have a new journey to undertake and a LOT of information to process etc. TAKE A DEEP BREATH!
The good news is that your son has been spotted at an early age. Early intervention and therapy can go a LONG way in helping kids with dyspraxia. The bad news is that working your way through the maze of diagnosis and doctors can make you want to tear your hair out!
Although they have base offices set mostly in Zurich and Geneva if I were you I would reach out to this group: http://allspecialkids.org/
as they seem to have a good beat on dealing with special needs issues etc.
From experience I would say if you can find a children's occupational therapist who has handled dyspraxia cases before this would be helpful. Normally they can help address whatever issues are at hand through various exercises that to the kids seem a lot like playing silly and fun games but are VERY focused in working on certain skills or issues. A lot of the time the therapists end up working hand in hand with speech therapists and sometimes physical therapists if there are other skills that need to be acquired or worked on.
This website: https://www.dyspraxiafoundation.org.uk/about-dyspraxia/
also might be of help to give you some general info. Keep in mind, EVERY kid is different. Dyspraxia gives you an explanation for some things but how each kid is affected and tackles some of the obstacles varies greatly.
Remember lots of patience and lots of love goes a LONG way..