Float for the top link would depend primarily on the rear remote valve. Unfortunately, a float valve is not a factory-offered option on the CK3510SE so mine does not float (I have spring and detent). Probably your best bet is to email and ask them the cylinder information for the DK10 kit as...
I recently purchased and installed a top and tilt kit on my CK3510. Being a new tractor owner, I figured a plug-and-play kit spec'd by a professional was my best bet. I got my kit from Michigan Iron (KIOTI Tractor 3-Point Top-N-Tilt Kits) and I'm very happy with it. Took 5m to install and it...