Help identifying CC trailer and parts

Starting to go over the trailer my 01 CB nautique came on. The previous owner had it registered as a home build and most likely because he couldn't find an ID plate on it, just like I can't.
- Any idea on where the ID tag may be?

I've been told and it appears from looking at other boats/trailers, this one is older than the boat and was likely made by correct craft. this correct?

Approximately what age and is there a thread or list of applicable parts I can find for it?

I intend on putting new brakes, lines, coupler on it. Already bought new tires.   have had the hubs and bearings inspected and apparently okay. I picked up what I think are the right oil seals, but not 100%.   
- What bearings, hubs, axle, springs, etc should I be on the lookout for?

that would help wouldn't it...

The guide posts pictured above are angled. You can see the opening on top of the starboard post.

the guide posts are straight and in the V shape you suggest. They actually have what appears to be an aftermarket welded on threaded insert 1 1/4" ID to accept a threaded pipe ( I did find the correct threaded pipe but alas, they were too heavy, not enough thread would catch & both broke almost immediately)

If I can find some kind of aluminum threaded 1 1/4" posts that may work better. any insight here would also be much appreciated!

If you look under the trailer at the rear you might see a white sticker with the serial number on it. They put a couple of them on the back side of the skirt and on the inside of the frame rail.