waterglyn,
I don't have a 1430, but my experience with a 2445 trailer package may provide you some insights.
The tractor itself, including backhoe, weighs in somewhere around 5,000 lbs. The dual wheel trailer is rated at 10,000. Between its own weight, the tractor and various attachments, I estimate total weight at 9,000. I would imagine the weight of a 1430 package to be slightly less, but not much.
A rough rule of thumb is the loaded trailer should not weigh more than the hauling vehicle although I'm sure that is frequently exceeded. I just opted to be more conservative in light of excessive hills and grades we must navigate in our western NC mountain community. /w3tcompact/icons/shocked.gif
We used a friend's Ford 250 Diesel PU with pintle hitch to haul ours. Turned out to be a good thing when we hit a couple of mud holes on my long mountain driveway (old logging road) where the extra torque proved essential.
Hopefully some more knowledgeable TBNers will weigh in on this with better advice. That said, I think you will find a 1/2 ton a bit light for all but occasional short hauls.
be safe!
sabi