I would wait on getting a 30/50 - not sure many people use them anymore!
20/30 is prob the biggest most go to - ask Alfresco, they are the conger chasers!
Abu 7000i woudl do you - a rocket is ott for the boat. Again, as you have been advised before, spend some time on others boats and try before you buy!
A cheap rod these days is batter than what was a good rod 15 years ago. There are some really really good cheap gear, ok fittings might not be rolls royce, but washed down they will last a good few years.
hth,
Rob