Hi Farkewie,
I have Marmot Precip wet weather gear (top and pants) and have used it for the O/land track and more. Perfectly fine.
My advice would be spend your money on more chocolate or grog - whatever luxury you prefer.

If you think you will do more off track walks in the future and have money burning a hole in your pocket (and have luxuries covered), I would buy Event (it's the new technology, did'nt you know

) .
Seriously, Precip on O/T in Oct - fine.