Climbing Fuji last weekend of September

Hi Gary,

First, many thanks for the great resource in your website!

My question is sort of similar to some others, but slightly different which is the reason why I dare ask...

We (3 guys, good conditions including a trained walker) want to climb Fuji last weekend of Sept. if weather conditions are ok. First question: is that legal?

Under the scenario, weather conditions are fine (not typhoon nor big rains/wind etc...), is it a reasonnably hard climb or is it a climb for very experienced climber?

At last, if both answer above are Yes, what route would you recommend?

Many thanks,
Francois