Sometimes you spend more time and effort trying to save a little money than it's worth. You can get the TB with the TPS from Rock Auto for about $115 including shipping- maybe $120, but Atlanta should have inexpensive shipping like Memphis. The part cost is $108, and that includes a $36 core so you can spend another $10 to ship it back and get $36. I've never done a core with RockAuto before- they might send you a shipping label, so you won't even have to spend a dime to send the old part back in the box that the new one came in. Total cost to you after the core is returned should be like $80, give or take a few on shipping. For a TB with a TPS- that's cheap.
This is a different part number, so you should check that out. I've been working on cars ever since I could reach the accelerator and brake. I can tell several stories where I tried to save money by rigging things up and failed miserably. I'd end up spending more waiting around paying gas to friends and straining relationships than I would've spent originally to simply get the bolt-on part. Sometimes I ended up getting the bolt-on part after I spend weeks or months burning up money trying to save a few pennies. Heaven only knows how many days you've already taken off your life due to stress.
Part manufacturer: A-1 CarDone
Part # 671003
To look this up, go to www.RockAuto.com
, select 2000 Ford Focus, select 2.0L L4 DOHC engine, a list will pop up, scroll down to Fuel/Air
, under Fuel/Air select Throttle Body. Don't even look under TPS, all that is there is for manual transmissions.