motorboat UK inland heading south

[heathernsteve]

we are getting closer to moving full time on our pearl 43 motor boat and cruising off to holland and the heading south all inland or germany area looking for ideas
has anyone else done this on a motor boat and can your recommend routes please
we would hope to have at least a 2.5 k a month budget and want to stay away as long as possible
would this be possible and would anyone fancy a cruise in company next year ??
could a cruise in company be an idea and has anyone done it before
our draft would be a problem but there must be routes
no time limit just want to escape the rat race for as long as possible

any advise very welcome

thanks

heather and steve