well my A-7 for the BSC here too me 3month minus 4 days... minimum of 5hours a week plus another 6 the week end

so 3 months is like 91days -4 =87  +-12.5weeks *11hours =138hours

man thats alot of time ... and his is a minimum im sure it took me more around 180hours !

but in general

1/48 AC 3 months

1/32 AC 6 to 8 months