Pezzy, It really isn't hard. I would suggest that you invite a friend over that has some basic knowledge of cars and do it! The friend can help you interpret the uncertainties, such as am I packing the wheel bearings correctly, damaging the races during installation, etc. It will do you wonders for your mechanical confidence. If you really screw it up, there will be plenty of warnings before you crash and die, and the financial penalties for screw ups are really minimal, all things considered. Becareful witht he vehicle while it is on jacks!
Go ahead ands live on the edge. Do it and let us know how it works!