Hmm, it sounds f*cked! 
EGR you can ignore, as you say you've caused that one.
If both sides of the TPS had failed you wouldn't be able to drive it at all (well, maybe on the clutch for the pedants lol) so I'd guess those are all caused by a loom or earth problem. If your battery and terminals are good, check the main gearbox earth, and then the ones under the ECU on the chassis. That's where I'd start anyway, Poodle might be along to prove me wrong shortly!
EGR you can ignore, as you say you've caused that one.
If both sides of the TPS had failed you wouldn't be able to drive it at all (well, maybe on the clutch for the pedants lol) so I'd guess those are all caused by a loom or earth problem. If your battery and terminals are good, check the main gearbox earth, and then the ones under the ECU on the chassis. That's where I'd start anyway, Poodle might be along to prove me wrong shortly!