These are easy to do, even more so if the engine is on the bench.

You will need some timing pins though. Its been a long time since I've done one but I seem to recall you can use drill bits instead of pins for the pulleys. I can't remember if you need need a screw in block pin on these though.

Depending how old it is as well, make sure you change any plastic idler pulleys to metal ones. Again, I can't remember the exact details but the old plastic pulleys breaking up used to cause a lot of these to go to the scrapper.... but that may have been on the older non turbo ones... it has been a long time.