Correct me if I'm wrong, but isn't the correct process along the lines of:
1. Remove wheel
2. Remove fork
3. Take out old spring, empty out fork of old oil by "pumping it"
4. Put in new (different weight?) oil and new springs
I'm assuming you have a centerstand? If so, you can put a jack under the bike to tilt it onto the rear wheel. Alternatively, you can attach rope to the handlebars and suspend it from your garage ceiling.
2008 DL650 a.k.a. Road Warrior, member #16 of the Flat Black Club
2009 Aprilia Tuono 1000R a.k.a. Silver Thunder