Hello,
I have 30 years experience programming in C and use LISP and Prolog in my regular employment.
Let's see these C programs. I will likely set milestones (deposits) for converting them in sets of 5 to 10. Depending on their complexity, I will forewarn you that I won't do much for US$5, since that only allows for ~10 minutes to edit and test the code.
A milestone payment for the full budget for this project must be deposited with this site before your offer can be accepted.
Alan Idler
Chief Software Architect
Idleswell Software Creations