Hesitation and bad smell

My first post and I'm already yelling, "HELP!"
'88 LX, 67K miles (not 167)
So I'm pulling onto a 55 MPH road and the car hesitates on accel. like a bad TPS. It goes away after a few seconds that first time, but is constant (when accelerating) that evening when the wife drives to work. I also have a funky exhaust smell in the engine area after driving.
I pulled codes (which were not constant memory but only running memory ones). I have replaced a bad IAB(-C) valve to eliminate code 12, replaced a yucky EGR and EGR position sensor to get rid of code 32 and 35, re-replaced a new TPS to try the code 73 elim., and replaced the MAP sensor because I sometimes got a code 72. I also cleaned the TB ports for the IAB and the EGR, they weren't too bad.
I set the base idle (IAB unplugged) at 900, TPS to .94v until a mechanic said Ford's this type may like as low as .6v, it's set now at .61v.
I tested the EGR control solenoids. There's good vacuum to the sol., good electric at the 2 terminal pairs (12v / 1v), BUT I was told (Haynes) that I should be able to open the solenoid TO the EGR around 2k RPM. I can't get vacuum TO the EGR at even 2500 RPM. Is this a bad sign?
I still have codes 13- Idle out of range, 72- no MAP sensor voltage fluctuation OR bad vacuum (shows 21-22), and 73- TPS or circuit.I still have the smell after driving, not rotten eggs, not rich fuel, just a bad wierd smell.
Does this sound like a partially blocked cat., bad NEW MAP sensor, bad EGR control solenoids, or everything or something else, or gremlins or what?

not eggs-actly

Well, let's say I've smelled the classic rotten eggs smell while driving behind other people's problems, and it doesn't smell that way. It might smell a little sweet and a little like non-rotten eggs exhaust. If I drive it a few miles, go home and pop the hood, I can sometimes see a light hazy cloud coming up from the back of the engine at the firewall.