Have you found a truck yet? There are several in your range here in TX.
As for the "can I run Gen 2 shocks" This topic has been beat to death.
Can you? Yes.. rears easy, front requires a different spring etc.
Should you? No
Are you going to use the truck just on the street, or do you plan to play off road?
If you intend to actually use the truck off road, I would save your money and look for a 3.0 shock set up. Great investment
BTW, if you can settle for a 12, I have a friend with a 2012 white for sale with complete Icon 3.0 set up, with bumps . He is asking $34000