Reference
https://www.cruisingworld.com/11-poc...rs-fit-budget/
Very difficult to have a boat small and light enough in weight to be readily trailerable [say 25 to 28 feet Length Over All, approximately 2+ tonnes] and towable by a large heavy duty vehicle, [think a full size pickup truck or full sized SUV such as a Chevy 2500 Suburban] and also to provide for tall standing height. To be readily trailerable, the
mast needs to be easily stepable and stowed.
A swing keel eases trailerability and opens shallow
water / shore / beach access and avails the limited
depth required for most boat trailer
ramp accesses, but does require structural intrusions to be housed into the
cabin sole.
A transom mounted
outboard engine mitigates against taking up limited
hull occupancy space of a small inboard engines which are inherently installed with very cramped access and are noisy below when operating.
The standing height will be limited in any case towards the center of the
salon area, not in the V berths and maybe not in the
head or over the side
galley because the side decks and foredeck intrude into the house space and are not as tall as the raised mid
deck house structure and of course the entire area under the
cockpit of a small vessel is crawl and
storage space. Meaning that most of the underdeck part of the boat will be of low height.
There are boats with pop up decks over the
salon area which pop ups generally can be deployed when at
anchor or in a slip but are not generally suitable or safe for having raised when making
passage except in mild conditions, and are disadvantaged when the
weather is inclement as they open to the air, bugs and dew and rain enter. Some pop ups will interfere with keeping the boom held down but the pop up works when motoring or not sailing. Since the pop up is actually the main
deck of the house structure it can be quite heavy and challenging to raise.