I've made some updates to the wps I posted before. Now the volume icon changes as the volume goes up/down, and the battery icon changes as the charge left in the battery decreases.
It still uses the Nimbus-14 font with the status bar off.
(I hope the battery icon changes as I expect, I'm still waiting for the battery to run down to make sure!)
Edited 15th Nov: Sure enough, the battery icon didn't work properly, so I've fixed it now...