Need Advise, Opinions and Info

[willy]

So today was splash down day for the G3.
The good news is the 8HP Yammie runs great.
The bad news is that the extra four pounds it weighs is enough to let too much water come into the engine splash well for my comfort. The 2 stroke 9.9 was just a little better and doable. This is bordering on too *** heavy dangerous for me. It was windy and choppy today on the lake, nothing severe but a good .5 to 1.0 foot chop and with her arse with the extra few pounds she does not float like a butterfly.
I have two engines on her, a Yammie F60 that weighs 250 Lbs. and the F8 which weighs 78 lbs. I need both as the 8 hp is required on my local reservoirs and the F60 is what I use on the big lakes.
Either engine by themselves is great, together a problem. I only had a half full fuel tank too.
Apparently G3 never intended for that much weight on her.
Option one, sell the under 50 hr. F60 and replace it with a 20 hp yammie that weighs 176 lbs, a saving of 73 lbs.
I do not think that a 20 is going to get that boat on plane or will it?
Second option, don't fish the local lakes, which sucks!
No weight to relocate, both batteries are already forward and the fuel tank is built into hull under the floor forward of the splash well area. Nothing else back there.
Any ideas much appreciated