A few issues and observations.
I dont like the way you have run the fire system. The nozzle you have pointed at the passenger footwell, what it is there for? That nozzle should be pointing at your face/chest. The 2 in the cabin should be at the drivers feet, and the chest as stated above, it is totally redundant in the passenger footwell.
I would also of ran a 2 line system from your T, one goes nearside into the engine bay and the other goes offside to the driver. If you really want the nozzles in those positions, you have effectively got 5 Nozzles running running off 1 side of the T piece (how much fluid/pressure do you think the last nozzle will see?). I would have run 2 lines from the T and ran 3 from one and 3 from the other. The positions are off in the bay as well, the third one around in the bay needs to point at the fuel rail, its not doing a great deal pointing at the cam/aux belts. Did you fit 4 nozzles in the bay because you had 4? You only need 3 really, you have 2 pointing at the gearbox for some reason??? If you dont know what i mean, i will do you a pic of what i would have done.
The removal of PAS is a very poor choice on a car your intending to run in endurance events. You may regain 5bhp by removing it, but the extra fatique and effort you will have as a result dont outweigh the weight advantage and power gains. In a sprint car (20min sessions) it makes sense, but on an endurance car it really doesnt. Have a look at the various Lemans/VLN/Britcars etc cars that run for 2hrs plus, see how many of them run without it.
Finally im not convinced about the Scrutineers judgement on using those grommets for the fuel system, are you sure he said they where ok to use there on the fuel line? You effectively have an open fuel system with that there, the grommet canot seal against fuel getting in, as either vapour or fluid (its not a perfect fit to the line). To create a sealed system, you should have a bulkhead connection with a goodridge (or whatever manufacurers) fittings either side, this is then treated as a sealed system and doesn't require boxing.