please post pics of this when done!This post got me thinking.
The heim joints used for the spindle pivots are able to be greased. Or at least the ones I received with the kit are.
On the threaded end, the very bottom, is a small grease hole. Using a grease gun with a rubber tip attachment, press against this hole and apply grease.
What one could do is build a threaded cap with a zerk fitting that threads into the A-arm back side from where the heim joint threads into. It would be a lot easier to grease, like a regular ball joint. I guess it could be plastic as it won't take a heat.
A threaded plastic pipe plug might work.
Hmm, a trip to Home Depot might be in order.