Ramshorn yoke

I have the standard “pretzel” yoke. My push to talk button is a microswitch embedded in the yoke hub cover, easily operated with the thumb of your left hand without moving the hand on the yoke.

All shafts are the same dia. Hole locations may diff. The hard part is getting the Erco wheel off... The C and CD shafts are the same length but with diff up stop hole locations. E and G  with F1, F1A are longer. Alons are shorter M10 ??  7/8" O.D 

Thanks for the quick response. I was interested because they are "standard" yokes that I'm used to and a ptt switch can be easily mounted where a thumb can get to it. Currently the ptt is on the instrument panel.

I'm considering installing ramshorn yokes on my 415c, is this a big production or just a few bolts. The paperwork included references cutting, this sounds a little offputting to me because once I cut something, I can't go back.
any info will be helpful..
thanks