I'm kinda in the same boat wondering if it's worth doing the conversion. Only other attachment I want (so far) is forks for loader. What I have seen is most conversions run about $750. And once converted now the original bucket needs to have work done to it or replaced. May just have something fabricated to work with existing (yanmar quick connect).
I guess it comes down to how many attachments in all you really need for the front. If only one or two it may not be worth the cost of conversion. Just my 2cents.
Bumping an old post from the dead, but I was hoping someone still had the .zip or .dxf that was originally posted here. It looks like the only thing attached now is a .jpg.I have a .dxf file of the quick attach for the cl200 loader for the sx3100. It is the 2 ends on the bucket that hook on the loader and you slide the pins thruogh. with this file you can have someone waterjet or laser out the brackets. the dxf is attach to this post as a zip file. I made a quick attach for my snowplow, so these brackets have notches drawn in for 2 x 2 tube but you can ajust for yourself. remember when welding that they will move around so be careful welding so they still line up when you are done.