a hobie bob may not be a bad idea if you're worried about going turtle. Although if you're sailing solo, you probably wont be able to right it by yourself without a righting aid such as a righting pole or a solo right.

The bungee that connects the trap wire just goes under the tramp rails.

You shoul dave two sets of trap lines.

One thing I always check for on a new (old) boat is the rudder cams. They are a sacrificial part (kind of like brake pads) that just poop out after a while. Check them out, make sure the rudders lock down and you that they pop back up when you kick the bottom of the board back.

On a boat that you're new to, it may make sense to replace all the standing rigging just to be safe.

Finally, get Rick White's "Catamaran Sailing for the 90's" sold here on the online store. It will teach you everything you need to know. Welcome to the club!