Hello and welcome to oilburners.
There are three different providers of turbocharger kits, Banks, ATS, and Hypermax. Banks and ATS have both wastegated, and none-wastegated turbo's, although you can only buy the none-wastegated turbos used becuase they are only selling there wastegated models. All of the hypermax's kits are none-wastegated. Banks sells there kit complete, with everything from the turbo to the exhaust and gauges and what not. ATS and Hypermax sell there whole kits in seperate pieces, like you buy the turbo, then the exhaust, then the gauges, ect. The banks will run you about $2600, the ats is $2000 for the turbo and intake + you need to buy the exhaust and gauges, and the Hypermax is about $1600 for the turbo and intake + you need to buy the rest of it. So in the long run the banks and ATS are about the same, around $2600, and the hypermax is the cheapest at around $2000 for the complete kit. There always seems to be some used kits for sale on ebay if buying new is to expensive.
As far as the overdrive tranny goes, is your truck a 5-speed, or an automatic?
You can buy an overdrive from Gear Vendors, but they are spendy, like around $3000 spendy. I think there are a couple other overdrives available, but I cant think of any right know
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For the IP, you can turn the stock one up for more fuel. But if that isnt enough dps-performance sells Hot rodded IP's and injectors. The only bad part about dps is they are a pain in the a$$ to get ahold of, and sometimes there products have some problems.
Hope that helps.