I'm guessing you have a manual transmission? It was my understanding that the 1.4kw starters were on the manual models but the automatic transmission models used a 1.8kw starter. If it lists your Denso part number as one of the starters this kit is good for, I think you're good to go. If you want to be sure, maybe go to your local Toyota dealer and verify with them that your starter is indeed a 1.4kw model.
Since the kits I got through the dealer had all the other associated hardware, I replaced everything in relation to the the contacts but it's not necessary. All you need to do is replace the copper contacts and plunger and you'll be good. You can reuse the bolts, plastic pieces and o-rings. You'll probably have to pound the bolt out of the larger contact because it's knurled and wedges into there securely. I'm sure you can just put the contact in a vice and tap the bolt out with a hammer.
Let me know how it goes.