[Randy Rosenberg]

Clearly rear shock towers, roll bar bolt and new tires are safety issues and must be addressed.

I don't understand why you need to rank/order the remaining suspension items. It makes no sense to me (for example) to swap the shock towers AND reinstall the old rear shocks, and then install new rear shocks later - just install the new rear shocks when you swap the shock towers. While you have your SPF up in air with the wheels knocked off, I suggest you change all of the suspension components on your list at once. (Also, you need to pull the left rear wheel off to access the roll bar mount). If you choose not to swap the front shocks and the ball joints at the same time, then you will be adjusting the ride height twice, for example, since the new ball joints change the suspension geometry.

Regardless of what order you choose to proceed, all of these changes are important and will make your SPF safer and better handling. I've done all of these changes to my SPF years ago, so you doing the right thing (IMHO). BTW, I suggest the Avons without a doubt or hesitation...

Have fun,
Randy...