Found myself in a similar situation and really felt insecure being boatless. Found this little gem in Freisland and ;ooking forward to pootling around the coast very soon.
I,ve used this a few times and had good results although it needs to be applied a few times if there are lots of coats
to remove.
Zero damage to gelcoat.
Peelaway Marine Anti-Foul Removal | Peel Away
I have a Hyundai 15hp 4000 psi pressure washer, and a 500 lpm high pressure pump ,also Hyundai.
Both several years old now and no problems at all so far.
More competition in the market now and I,m not sure Honda can justify their extra money