JayHawk,
I recently purchased a new Grand L5740. I took delivery in the winter so I had the snowblower mounted and attached at the dealer. I recently removed the snowblower from the tractor leaving the sub-frame attached. I was able to attach and operate the FEL with no problems. The down side is that the sub-frame sits very low to the ground and you get almost no ground clearance as a result. This is a real problem on rough ground! I am planning to remove the sub-frame at the earliest and am wondering if anyone can provide insight as to how difficult this is. It looks pretty straightforward though a bit on the heavy side for a one man job.
Mike