Just a suggestion, I made my side window using a grinder with a cutting tool...since the side cover is made up of thin metal, you can cut your way thru at no time without scratching the side of the cover. But it actually depends on your skills to handle such power tool.

Try the following: (If available if not go to the next option)

1. Grinder + Cutting tool + Skills
2. Dremel + Skills
3. Can openner + skills
4. Knife + Skills
5. Spoon + Skills
6. C4 plastics explosives + Life insurance

Happy modding.

CB-Byte