building a budget rig- 1994 chevy k1500

hi, i have a 94 1500 chevy 4x4 pickup. it was given to me by my brother and i am wanting to make it more fourwheel apted. however im on a budget, and want to know, what stuff is the cheapest to get and have the most impact. i want to go with kind of a prerunner style, with the small front bumber and skid plates, which ive got the stuff for the front bumper. but what can i cut out that is just dead weight to make it lighter? and is it better to go cheap and lift the stock ifs or just change out the a arms and go from there? i like how i have the back set up but i want to get a z71 rearend for the limited slip locker. or should i just upgrade the stock one? any ideas would help. thanks