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For your original problem how do you know you had a vacuum leak? Off the top of my head from what you describe I would say either vac line or iacv related (check iacv by turning screw while car is running and see if idle goes up and down according to screw adjustment. Most of the things to check have already been mentioned but you can easily check all of them in one day with very little money, such as:
1- if you can't do a smoke test then throw on a vac or boost gauge on TB and check that.
2- iacv is cake to clean. Just take out screw, spray some seafoam in there, put screw back in and start car, tap on iacv if it's stuck, then adjust screw down to idle.
3-TPS...multimeter
4-CPS...not likely but easy to check
5-TB...check flap and cable adjustment for sticking or play
6-lines...since you replaced everything make sure you have everything routed appropriately
7-maf...not likely, test by unplugging while car is running and see if any change
8-cold start sensor...not likely but also easy to test
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