Well, not having peers does present a problem here. If you have enough other coders/programmers/developers in your organization then it might be possible to just talk a little more high level with them instead of code/language specific. Really most C based languages (Java, Perl, etc.) are similar enough that a good programmer (with an open mind) can understand your perl code. I have caused much envy among Java programmer friends showing them elegant solutions using anon. subs and such, which would take a ridiculous amount of code/time to do in Java.
I would find the best <other language> programmer you can find, and try Option 2, since a lot of the benefits of that comes from you having to explain your own code, you will likely benefit even if they don't offer too much thought.
Personally I would really like to see a Code Review section here on Perl Monks, but that might not help you with work-related code.