Origami Treemaker

Hello everyone,
I'm new here and I'm interested in learning to make apps portable myself, but I appreciate any help I can get. So this is the program I want to try first:

Program: Treemaker

License: GNU Public License

Description: It computes crease patterns for origami bases using tree in graph theory.

Website: http://www.langorigami.com/science/computational/treemaker/treemaker.php

Other : 74 registry keys

How long will it take to make this app portable?