I still have and run the MPC New Haven F3 AA set that I bought from Charles Siegal's web site when he was still in Pennsylvania in the late 90's. Super inexpensive.I was also able to aquire the matching MPC B unit shell from Trainworld for a giveaway price shortly thereafter.
Never had any trouble with the set, it remains to this day one of my favorite trains. I have never looked down upon MPC offerings. They're fun to run.
John