Well if it does start slipping he will map it down scale however he will say no doubt get clutch and bring it back and won't charge you as much
No point in adding the stage 2+ mods if your only going to scale it back. Go hard or go home (and buy a Helix clutch from ALEX @ AKS)
Standard fuel pump is plenty good enough for k03 car dude, the upgrade pumps are more for the k04 set ups if you want to surpass the 300bhp barrier, k03's aren't good for 300bhp+ so no need for upgrade pump.. Other bits sound good though