hi phil,
sounds like youre fairly well planned......
have you been in touch with the local model boat club ? maybe there is someone in your area that could assist ?
there is also several shows worth a visit where there will be plenty of people to chat to about the pros and cons of your project !
there is one coming up early october at beale park near pangbourne near reading, and the other international show at warwickshire exhibition centre in november
if you google then you'll get dates and maps....
alternatively take a look at
Model Boat Mayhem
or ask questions on this forum......
they are a friendly bunch honest !