This is what I was quoted for a new MT prop and spinner for a Lyc. AEIO-360-A1E engine
3-bladed hydraulic constant speed propeller with a diameter of 190cm.
9.930,00 Euros
2-bladed hydraulic constant speed propeller with the
diameter of 183cm:
8.530,00 Euros
I was very impressed by the whirlwind prop which all the aero boys are fitting in the US
See
http://www.whirlwindaviation.com Its carbon fiber with a nickel leading edge I believe the blade is hollow and is made by inflating a bag inside the blade while the blade is in the mold Price is $8600 which compares well with MT and Hoffman.
Unfortunately its not certified and can only be used on homebuilts. The PFA have not yet approved it so it would take some paperwork to be able to get them to approve it over here