Yes at 1/6th scale it will be a large boat!! Take up weight lifting and body building to get the thing into the water! ;)
I know the problems, check out my build on the main Mayhem site:
http://www.modelboatmayhem.co.uk/Modellers/Mike_Pendlebury/Part01.htm (http://www.modelboatmayhem.co.uk/Modellers/Mike_Pendlebury/Part01.htm)
Still it's good fun and not as fiddly as the smaller scales.
Mike