go for it why not !

Only thing praps would be A mast may not be up to it , with extra rig loads from jib and wings you have had made .

My experience of A class is to be at forefront of developement they don't tend to over engineer things like masts . if it all goes pear shaped there's prob loads of cheap ally Tor masts about !

I have an ole ally A mast which I thought of sticking on some ole hulls for a fun boat for kids and stick a spin on , but was advised mast would not be up frit .

Good Luck

ps you can always laminate more carbon onto mast if a prob, not pretty, but if youre just after a blast.