IMHO..do yourself a favor and spring for the OS .46 AX. It's quite a bit more than the LA, but you will actually USE it after your trainer/float-trainer are um....too timid for you anymore.

I have an OS .46 LA NIB that I will never use because I just don't buy small planes anymore. You will grow out of those engines pretty quickly....well you might. (Some people prefer smaller, easy to transport planes.)