Today I got an email from Hercules Propeller in the UK. I sent them a pic of the prop I fell in love with which was this composite MT I saw on this red 108-3.
Below is the email I received from Hercules today and it sounds like they can make this happen for just a little over $2000!
Hi Will, Yes we can. We can effectively use the same design which performed successfully on Darrell’s 108 although manufacture it with the sweeping plan-form. It will effectively be the same prop aerodynamically. No problem to finish the prop in gloss black and square tip to look like the aircraft in the picture you sent.
So they would take this design prop, square tip it, and paint it Gloss Black! Now I just need to come up with a spinner…..