Yeh first please dont type in caps. It is very hard to read.
Did the shop give you the actual code? Like P0141 or something. That can help us tell you what is wrong with your truck since it can be a number of things. Also throwing parts at it can be a huge waste of money and time consuming having your ranger down. I recomend spending $100 to get your truck DIAGNOSED from a reputable shop. They can tell you exactly what is wrong. Since it is a vacume leak, they can hook up a smoke machine to it and basically find out where the leak is. If its just a vacume line, you can go to any local auto parts store, buy 3-4 ft of line, and replace them yourself.
Its super easy, pull one line off, measure it out, cut a new one, and replace it and go to the next. Dont pull them all off at once or it will be a huge PITA to but them back on.
If its a intake manifold gasket leak (which is very common) then that will depend on how comfortable you are with working on your truck. The only special tools you need is a torque wrench and a E7 socket. Other than that it is just your basic socket set and a lot of time. Let us know how it goes.