210bhp is the stock bhp figure, so I'm a little confused at this.
Revo maps are quite good, they can be set at whatever you wish so they don't have to be that aggressive. I would look at getting an SPS from Revo as well, which allows you to have up to 3 maps plus the anti-theft mode which should allow you much greater control over your maps.
You'll notice a considerable more amount of low down torque and a smoother power delivery with a stage 1 map. As for the wear on the clutch, I ran stage 1+ for over a year with no issues with the clutch. Yes, increasing the torque through it will shorten it's life but provided it is in good condition now you shouldn't have to worry for a while.