I used for my rear wheel bearings two cheap tool sets from Amazon:
http://www.amazon.de/gp/product/B0051O4BZK?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00 is similar to the SIR tool. It pulls the hub, extracts the outer race and reinstalls the new bearing. The long threads are included in that set. With the tool it was an easy job. Don't forget to cool down the bearing in your frig and heat the hub with some hot air prior to installation. And it helps to heat the hub before you pull the outer race...
The separation of the inner race from the flange was the most difficult job. I used such tool:
http://www.amazon.de/Lagerabzieher-Trennmesser-Abzieher-Werkzeug-Satz/dp/B001G4R818. It still was difficult on one side.
Sorry the descriptions are in German. But I'm quite sure you find similar tools in US at most likely better prices. I paid around 50 € each. Quality is not fantastic, but they make the job for a couple of bearings.
Good luck