Lake Boat options

All,

Looking for a smallish lake boat. Will probably keep it in Blessington, think it's €60 a year, and them move to other lakes when needed.
I have a trailer for my Bayliner classic, which is 19ft and a 4HP 2 stroke engine, would that engine be ok for move a 17ft fiberglass or wooden lake boat?

On the price, I'm looking at this and wondering if it's fair value;
https://www.donedeal.ie/boats-for-sale/ ... t/29538429

Also lookin at this as I dont need something huge;https://www.donedeal.ie/boats-for-sale/11-ft-lake-boat/30041330?campaign=8

There is a FB page "Boats and Bits for Sale - Ireland" loads of stuff goes up on it, small boats too.

The 4hp is fine for small lakes but you wouldn’t want to be out in a big wind on one of the larger lakes.
There’s a 5hp limit on Blessington.

I use a 5hp on my 17ft fibreglass boat on the Derg. Works grand but ya have to launch close to where you want to fish. 5hp wont let you cover a the big lakes