Personally I wouldnt be worried aboutthe Nv gear / Radio aspect...everyone has their favourite makes and models and we all tend to change them as we go if needed in any case....
The Yanmars are renowned for reliability...and that sems plenty of power for this size boat.....
I bought our Searay without a survey, knowing there were mechanical issues on the horizon but was happy with the hull, furnishings and layout, but I would expect a short seatrial with this one being an unknown hull
At the end of the day....beauty is in the eye of the beholder and if you could get a good price might be worth a punt....
Just my opinion...
