$150..... you're gonna be a little shy. I'll just touch on some of the issues you will need to address.
1) Fitting the turbo to the manifold. The stock manifold sucks, and isn't great for normal use or a turbo, but it will suffice for low boost levels. By that, I mean 5 - 8 psi. You will need to get a flange (suited for the turbo you are going to use) and have it welded to a piece of pipe. Then attach that pipe to your exhaust manifold. You may need to have it bent into a "J" to allow clearance. Most turbo's can be "clocked" in any direction. You can rotate the housings for easier plumbing.
2) Carb setup. You have 2 options. Blow through vs Draw though. This is where the money decission comes in
On a budget, a draw through setup would be best. You basically let the carb feed the turbo instead of the turbo pushing air into the carb in a blow through setup. In a draw through, you don't use an intercooler, and you don't have to worry about fuel pressure fluxuations. If you can, look at how some of the 3.8L GM engines used a turbo. GM made a plenum that used a drawthrough turbo with a Quadrajet carb. This might be a good idea. Check ebay or there is a guy here with one (54Ford I think....)
3) Pluming to intake manifold from turbo. Here you will need to have more plumbing made. In a draw through setup, you just run a pipe off the turbo's compressor up, over, and down into the intake. There's no carb there - it's in front of the turbo remember? Nice and simple... In a blow through, you have to use a carb hat to seal over the top of the carb and pressurize it.