since you mention the center-stand is expensive, then a relatively inexpensive center-stand 'substitute' would be:
1. the Bike Prop, at R249 - just jams under rear swing-arm, and uses side-stand of bike to lift rear of the ground...
2. the Snap Jack, at R995 incl, same concept, but way more stable, since both the 'foot' and the 'head' are articulated, and the 'foot' is serated from grabbing down into loose dirt, etc.
the Snap Jack is more stable due to more width, the serated foot, AND the front brake is then 'grabbed' with a supplied, purpose designed strap. Around R995 incl for snap jack, and if riding wit h a GROUP, then you only need ONE!
1st one (old design shown!) is around 10% of the price of a center-stand, 2nd one (the shocking pink was a one off for a famous SA lady biker!) is around 35-40% of a center-stand.
Cheers!
Chris & Team