Hi Chris, it was my first rc boat to. May I say, take your time and don't rush things, read and read the instructions before you start.
I started without much knowledge, I have learnt so many things since then and still learning today. I made things a bit harder for myself as I wanted the lights to work by remote control, and the fish trays to move, also where to put the on/off switch without it being seen, but able to get at it, without taking things apart to do so. Also I wanted to get at things inside, i.e. replace anything that might go wrong. Don't forget sometimes you have to do some painting or staining before building.
These things you have to think of before you start building and gluing the boat together.
I must admit I did not get the Robbe Geared Motor or the deck planking boards, I cut my own planks. (mind the fingers)

I went to the local model shop and had a chat to the owner and came out with Speed 600 motor a Hi-tec speed controller (now I use “Mtroniks Marine”) and 6v 4.5Ah rechargeable sealed lead acid battery. Also a Hi-tec 6 channel radio set, ( I wanted the 6 channel so I could use more channels later if I wanted) plus the chargers and bits and bobs. Think the owner rubbed his hands together a bit, as it wasn’t cheep, but you can get a bit at a time as you build the boat. Antje is 1/20 scale, and I found some Tamiya racing pit figures at 1/20, so I used them but I glued them as I wanted, mix and match, and not as the instructions.
Hope this has been some help to you, all the best with your build, and keep in touch. There are many more experienced guys on here than me, and ime sure they will help you out as well. Sonic.