can't find any Info for macho 1500 ski boat

[pleasehelp]

Please help I have come across a mercury 150hp outboard cheap if I want it. I'm wondering if it's going to be to much for it??
Atm it is running a Johnson 60 but when under load ie 3 people in boat with 1 tube it struggles to get on the plane but is great when it is. Apparently the macho has a very similar hull as a bullet but again can't really find any any information if someone could give me some advice it would be greatly appreciated.

Thanks
Alec