Not sure if the price you have is from EA, but we offer the ATI, and, for your loader, $825 with free shipping:
ATI Tach All SSQA Adapter
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If you can order the tractor without a bucket, our Wicked Bucket will be an awesome addition, in lieu of a factory bucket. It is 100% AR450 Hardox Steel, and it is so strong that we tested it on our Kubota SVL95 tracked skid steer, and the 72" only weighs 225 pounds. This means one sized for your Yanmar would be under 200 pounds. The Wicked Bucket comes with a smooth 3/8" welded on smooth edge and a 3/8" bolted on WICKED edge for ripping and digging much better than any stock bucket. A surprisingly low price is icing on the cake.
Check out the details/price here:
EA Wicked Bucket
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Unless you're doing a lot of work that would require a 4in1, I think you'd be much better off with the Wicked Bucket along with a
240 pound Wicked 55 grapple. It will be MUCH better for moving logs, brush, rocks and other rubbish.
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I hope this helps. You're welcome to call me to chat about it. 828-464-1200
Travis