Grampians - Major Mitchell circuit

Planning to do the Major Mitchell circuit in April, I've done a number of overnight hikes including Wilson's Prom southern circuit multiples times and GOW but not the Grampians. What are the facilities like at the First Wannon campsite and Jimmy Creek? According to the attached both sites have pit toilets and fire pits. Are there any running streams or water tanks for cooking or cleaning etc? Any shelters or seating? How do they compare to the good facilities at Wilson's prom an GOW?
http://parkweb.vic.gov.au/__data/assets ... ans-NP.pdf
Thanks
http://parkweb.vic.gov.au/__data/assets ... ans-NP.pdf
Thanks