Sounds like the head would straighten up. Did you take it to be milled yet? I didn't get my tools to take apart mine before I leave, so I'll be going to the machine shop in Dallas that I found.
If you want his name number and address, Email me. I'll be checking Email as often as possible while in Europe. I'll be going there as soon as I get back, which will be the last week of September.
I hope you get some replies which will give you confidence about the bottom end. I'll bet the bottom turns out to be okay.
Let me know if I can do anything, I'm in Fort Worth today, and will be at home Sunday and Monday morning if you need anything.
Best of luck,