Question re: honwave launch wheels
I used to have the 3.2 honwave with the extended airdeck trim tabs at the back.
The wheels you need are made by a company called TREM, think they're based in italy. mine cost me £182 bout 2 years ago. cheapest i've seen recently is pacer marine at £149.
There are 2 positioning holes in the wheel shafts.
1 for when the wheels are down as you pull the boat up/down the slipway.
As soon as you get it in the water, pull out the pins, slide out the shafts from the locators, turn the shafts/wheels upside down and rotate away from your outboard and you will see 2 other holes in the shafts, then simply put the pins back.
Can be a bit of a pain once in the water cos of the waves and also as soon as you undo the pins, the damn things start to float.
Agree with CJS bout the inner tubes they are ............ Hope this helps and good luck.