Help me bring this Michael Benet Back to it's former Glory

I have this dress that I purchased in October of last year at a DAV thrift store. It was in their Halloween section and looked like a sad shell of something that was once grand. I had to rescue it. I have no way of finding out what it used to look like so I was hoping these forums may be a good resource. Also it is in need of cleaning but I wasn't sure about the netting and I didn't want to damage it. Here are some photos to help with why I think it's missing things.. I suspect it's from the 60's based on the tag and lack of dry clean only instructions. Thank you in advance!

 

I think it's early 1960s and I believe you can get a dry cleaner who specializes in formal and bridal to clean it.