R# 6.0: How do I clean up redundant initializers and join declarations across a file?

I'm working in VS2010 on a codebase that started (15 years ago) in Fortran, got ported to VB6, then autotranslated to VB.Net, and finally autotranslated to C# by C-Sharpener.  (Stop laughing, it's not that funny...)

As you can imagine, the translated code has some oddities.  Two of the annoying ones are: 1) declarations of all variables at the top of each function, 2) C-Sharpener has added VB-style initialization code to each declaration, as VB guarantees initialized variables and C# doesn't.

I can use the context menu items "Remove redundant initializer" and the move/joins to fix the issues by hand.  This is tedious across a 100k line codebase :-).  How can I automate it?

Thanks in advance for any ideas,

- Peter