Please accept my apologies in advance...you didn't ask about this, but I believe strongly it needs to be said:
A Holiday Mansion 38' Barracuda houseboat is singularly unsuited for cruising the mid-Bay, or any part of the Chesapeake, including the lower Potomac
River and other stretches of open water
. It's downright dangerous, no matter the manner in which it is powered -- inboard or outboard
I say this having lived on a 42' houseboat with BIG twin inboards and having cruised her very actively on the Potomac
over a 17-year period. Also, having seen/heard of many houseboat disasters in the Chesapeake area.
The problem is that on the Chesapeake the weather
can change very, very quickly due to localized storms. Absolute flat calm conditions -- great for houseboating -- can change rapidly to near survival conditions, especially in relatively open water
. Houseboats like the Holiday Mansion and Carlcraft and Gibson and such are just not able to take rough water, even if expertly handled and even if adequately powered and even if in excellent mechanical condition.
I see you're in Kent Island. If you just want to play around in the Narrows area, then just about any type of power would do you OK. If you're thinking about longer trips on the Bay, I'd be VERY VERY careful. A couple of years ago a well-found coastal steel
cruiser with a very experienced professional captain
off Sandy Point due to a very violent thunderstorm which blew up out of nowhere.
Houseboating is fun. Just about the most fun you can have for the money
with your clothes on! But, it needs to be done in very protected waters, IMHO.