It sounds like you really went on a quest to find your fuse holder. NAPA also probably carries them, but sometimes they are bit more expensive.
If you leave your key in OFF, the tractor will not start when you use the hotwire. Just the starter will engage. If that works, then try a normal start. Sometimes giving the starter a kickstart will make it start working as it should with the normal circuits. If you want the tractor to start when you hotwire it, put the key to run and and set the parking brake with the range shift lever in Neutral. That way none of the operator safety features will keep the engine from starting. It should fire right off, especially if the glowplugs cycle when you turn the key to RUN. I also recommend that you replace fuse #2 in your normal fuse block under the dash with
one of these resetting circuit breakers. Using 10 amps to replace that 8 amp fuse is just fine. The circuit breakers are the same size as your fuses and fit into the slot perfectly.