I usually get my props from OSE, but they don't have a pair of the 'M' series props.

They do however, have both the X447 & the X447-R.
http://www.offshoreelectrics.com/pro...?prod=oct-x447
http://www.offshoreelectrics.com/pro...prod=oct-x457r

I'm sure you know that these props need sharpening & balancing before you use them.

But here are the CNC props that I like to use too. They are ready to go. I do however just give the leading edge a bit of sharpening with a fine file & sandpaper.
They don't have a 47mm only 45 or 48. As I've never tried the set up that you are using. I couldn't say which prop would work best. But I personally would start with the 45's.
http://www.offshoreelectrics.com/pro...+2+Blade+Props