With help I can do it in 3 hours.

I was able to do one in 2 hours flat in the past. It all really depends on how prepped I am.

I like to have a set of LIM bolts cleaned and ready. That'* a time saver
I have used a clean LIM that I keep on the shelf. That'* a big save
Air tools for disassembly/gasket area cleaning. Priceless for time

Guess I could have it down to a little under the two hours if I pulled out all the tricks. But then...that'* just too fast.

Air compressor, simply one of the very best tools you can have in a shop.

Which one of the manifolds and gasket sets from Rockauto did you go with then? My '02 has 285,000 miles on it and has been flawless for needs, i.e., oil changes, occassional egr, tensioner, etc., nothing major. But, a couple of weeks ago, I had the fortune or mis-fortune of meeting Bambi'* big sister and the radiator cracked up top on the plastic portion where the bracket fits on. Unfortunately, it was like 20 below zero and I was close enough to home to where I tried to get it home and she got pretty hot. $160 and a couple of hours and I swapped the radiator, but I've got a coolant leak towards the driver'* side of the manifold. I'm hoping a gasket and UIM swap will take care of this and allow me to pile on some more miles. I put on about 120 miles of freeway driving per day and I abuse the heck out of it when I'm behind the wheel, but oil changes every 3000. The only mechanical abuse I would admit to on the car would be in relation to the transmission. I haven't touched it, no fluid flush, filter or anything. I've owned a bunch of cars and have treated the transmissions the way the manuals say and ended up rebuilding them anyway and I thought just once I was going to try it the other way and she'* still going. Anyway, back to where I started. I see that RockAuto has Dorman, ATP and ACDelco and just curious as to which manifold will work and comes with everything I'll need. Thanks and sorry for getting long winded, but this car, engine and trans just amazes me.

Sorry this took some time to get back to, hope I can still help out here. I bought the Dorman UIM, it came with everything you'll need for that part of the job, even down to the injector o-rings. I also went with the more expensive Fel Pro LIM gasket kit, which is basically an aluminum plate cut to fit. Again, it has all the bits and pieces you'll need, including new o-rings for the coolant elbows. If you want new elbows, you'll have to get them separately. I had a bear of a time hunting for them online because 'officially' they aren't called coolant elbows, but rather 'heater' elbows or heater tube or something similar. The good news is you can run to your local auto parts store and buy them off the shelf. When I pulled the old one out of the LIM it was broken, so I took it to my Advance Auto and the lady there walked straight to the new ones hanging on a rack in the middle of the store. $3.50 and I was back in business!

If you go with Rock Auto, don't forget the coupon code which will save you 5%. I think they have it posted on this forum somewhere, or you can do like I did and just google for it, it'* easy to find and there are more than one, all %5 off.