Convert program written for PIC16F685 to PIC32MX795

Currently we have a program written in C+ for a Microchip PIC16F685 (20PDIP) and need it converted to operate on a QFP PIC32MX795F512L. We are using MPLabX compiler and editor. Need the source code written to allow the existing program to load into a run on the PIC32. Approx 700-800 lines of existing code for the PIC16 (includes comments).... perhaps 300+/- active statements...balance are comments. We will supply port assignment changes.