Help with Perl/CGI script

I have several stores that use a shopping cart written in perl. I need someone that has experience in coding Perl/CGI (not a php programmer) to work with me to make a few edits. This is nothing overly difficult. An example would be to define a variable and make it so that the variable can be called in the layout pages. I am looking for ongoing script support as well. I am bidding the job at under 100 dollars because this is the lowest bid category but I am looking for hourly rates in responses.