Kelong fishing in boleh land is not as safe as it sounds. Make sure you don't go cheap by going during off-season like during NE monsoon. Waves so strong even fishermen don't go out. The kelong is about 7.8 km out to sea and will take more than 30 - 40 mins to get there. Problem is many sinkies want to go back at the same time, but not enough boats due to usual maintenance issues and whether the boatmen feel like working. The boats get inevitably overloaded and easily tip over. As sinkies are a foolish lot, they bring their 6 mths babies, toddlers, grandmas along with ratio of 1 adult to 3 children. If you are one of them, pray to your favorite gods first and make sure they (not the immortals) have life jackets on and not sitting inside the boat cabin when shit hit the fan.
Anyway $400 for first time purchase is an overkill unless you intend to be serious in the hobby, Your first choice is seldom your best choice and soon you will be buying more or customizing more until you surrender.
For kelong fishing, the catch are small size and you spend several hours just to degut the fish. Then you bring the fish in an ice-box and forced to give it away before they turn rotten. Only the kheks do that, they are like cats, can subsist on fish alone, rotten or otherwise, something in their 'must get something mentality'. Half of your friends who go with you will be secret Kheks, speaking perfect teochews and hokkiens except privately to one another out of earshot. They will chope choice position like the rear (stern) boat corners and refused to leave and would rather die frozen instead of taking turns so others have the choice spot. Back on land, they go to JB markets to buy fish laced with formaldehyde preservatives so show off and tell people its all caught by them.
The kelong owners are probably kheks so you get prison rice and unsold fishes nobody wants. 5 meals a day and but soon you will be like Pavlov dogs salivating when you hear dinner bells ringing.
Its cheaper to go to Pulau Ubin and fish from the jetty. The buddhists idiots due to their malnourished brain state due to eating too much heartlanders style vegetarian food are always releasing live seafood so you might get very lucky.