Hi Jon, There are a number of people who post here who do the VHF training try doing a search and drop one of them a mail many on the south coast. I did one in Poole couple of years back.
With regard to the outboard I looked for a course but had no luck. I have picked up two books that we good (IMHO) and have helped me .
The RYA book of Outboard Motors by Tim Bartlett
Outboard Trouble shooter by Perer White
Hope this helps
Remember It is only possible to live happy-ever-after on a day-to-day basis