10's on $5,000 ?

I don't think you can do it.
NOT trying to be a poo poo on your parade but 10's requires the HP for sure but you have to get it to the ground and stick.
so in my head, SS spring at the vary least(do they make them for a diplomat?) then some racing shocks will have to be used and tuned. Extra weight on the noise will need to be addressed

So what parts do you have already that don't need to be thrown into the budget.

I can't believe someone else hasn't said it yet but strong 440 and a lot of nitrous.
Parts I have are spent against the budget. Other than that, the 5000 dollar budget would be pointless. And I like the fact you acknowledged this isn't a skip in the park. Again, that's what makes it fun.