I think you should get everything done that you want done and then get it mapped, also think you should add an actuator and WMI to your list for the ultimate K04 LCR
Depends how much cash you've got to throw at it mate. If you can then no harm doing the rods mani etc but personally I'm sticking to the power I have now and making the chassis better setup for track. Diff, clutch, raising the coilovers etc etc etc..
This pretty much sums up what's going on in my head