well i just put a 65mm TB back on this thing, made an IAC block off plate, and made a remote IAC.
I tapped the two round holes in the IAC valve with a 3/8" NPT tap. then i threaded in two 3/8" NPT nipples, 2" long. then i slid 3/4" heater hose (the typical black stuff, for your cooling system etc) onto the end of it. got a barbed reducer for the intake end "3/8" and stuck that into an accordian tube for a v8 SHO, which fit my 90mm maf housing and 65mm TB ends almost perfectly. then i ran a 3/8" reducer to the intake side. i had to run a vaccum line for the "vaccum block" (heater, etc) to the passenger side of the intake, where i wasn't using one of the inlets on the UIM. The IAC is zip tied down away from view on two of the stainless brake lines right up against the firewall (should hold the little bit of weight no problem) and the vaccum block is just hanging in the balance (like it always was, but i will extend the small vaccum lines and run everything to the passenger side of the car like the taurus is)
all in all it was a cake walk, but it took forever. i had to modify a 60mm shaft to fit the bigger plate, and modify a 99' 3L throttle bracket to work. i'm a little leary about the strength of the TB bracket because i had to notch it out in a few spots. i might reinforce it a little bit if it tends to sag or anything, but i don't think it will. feels solid right now.
all in all, it looks clean as heck (as it did before). i even got the plastic TB bracket cover back on it, to make it look even more "factory". pics up later.
oh and yeah, it definately helped, and the remote IAC does its job pretty well. it does hang up in the 1500 rpm range for about three seconds when i let off the gas, then it will drop down to 750 rpm and idle solid as a rock. Air/fuel is good, per my wideband too.