Removed my deck

[Liam]

So it is time to start the overhaul of my 73 cuddy. I cut out the deck last weekend and found a real interesting set up underneath it.
Although the original construction was pretty shoddy there looks to have been some equally crappy repairs in the past. I have enclosed some pics for your amusement.

The girders are original and do have some roven woving on them here and there,looks like it was thrown on from a distance.

I am a little confused about the main stringer,i know someone has added the stringer closest the keel but is the outer string original or was that added at the same time? Neither has any glass on them.