You will need to probably do some modification to existing stub shaft from gear case. But here is Deere aftermarket clutch section that might help you out on some general purpose options or ideas. You could always drill a hole and make it a shear bolt set up.
Like others said, you are probably going to spend a little time in the pc looking for changes at s/n breaks but here is the chart, available at the JDparts catalog online. Good Luck
This is what you would generally use for boom control on manual controlled sprayer. You would mount this close enough so that you can reach from the tractor seat. If wanting a lot of info like this google teejet, pretty dominate player in the ag world for spraying products. Download their 51a...
As a side note, once you get your starting issue figured out. This tractor already has wiring available for additional light (unless you are already using). Att is inst to identify the existing leads that can operate off of the tractors light switch if interested.
Here is the section out of the op's manual regarding your tractors hydraulics. Now I realize you are not running a hyd motor but explains why you do not have a detent on your scv's. With that said there are plenty of users tying back the scv's for live hydraulics to attachments like you are...
According to these charts (sorry they are small) I don't think Deere is giving you the run around, there may be some literature from 20 years ago showing an LT with a front thatcher but does not appear that it was actually released. As a side note there was issues with mounting and lifting of...