Wow!! great report and pics..... sweet as @EOA
I went in there once but didnt manage to stumble across the crane and felt the need to get out, i like going underground but being claustraphobic of a fashion and i didnt feel completely comfortable in there, maybe the low roofs or just evidence of all the fragmented and fragile rock did it for me but there was only one open access when we went, it looks like there was 2 when you went?
And well done to go in there solo, need to get myself back there and try and conquer some of these fears that are lurking lol
Cheers Stonemonkey - I was conflicted at points during the solo missions, but just had to keep plodding on. Yeah there are definitely two ways in / out at the moment. There may be more, but those are the two I've used. If you want to get back in and find the crane, you're welcome to give me a shout. I don't mind going back in again...
Also, there are several ways around it, so if there was a collapse while you were in, you could find another way passed and out.