Hi Geoff, we bought the set up from satplus as there customer service is excellent and good prices. We have had ours for 4 years and the set top box is a 12v but the new system out now is VAST I think with all the digital channels but there is no 12v decoder at the moment.
With our system you need to buy a card and register it every 6 months and they only give you channels on one side of the country you say you are going or as I have you can get hold of a free gold/silver card it's called you get all the channels and don't need to register it I think with the new VAST system there is no need to keep registering.
Not sure on the exact size of the dish but it's not that big and when I bought the set up I didn't order there dish stand as it looked too heavy so I used one of those $25 aluminium camping close lines and just used one half.
Mounting the dish I made a timber sleeve and fitted to the back of the shower.
Hope this helps.
Christian
