I already have one flying with a Saito .62 in it. It is a small light airplane and with the .62 I have unlimited verticle. The plane fly's and lands great. Your .46 AX should be perfect.

The only change I made to my plane was to mount two Futaba S3115 servos side by side for the ailerons.

I bought the second plane to have around "just in case". Hope I don't need it anytime soon.