Sorry to hear about your dad, But as you know, Dell's are very propiretary, but modding the case is not a problem. I don't much about mods but someone will help you.
To be honest I had a hard time grieving as much as my family over my dad. We got into a lot arguements about using outlook express and his PC. I told my parents to stop using it, but they wanted to keep email@example.com
inspite of the fact that they have over 5,000 emails. I installed thunerbird for them because it had gmail support & you could organize mail in FOLDERS. They did not like the filters I setup because they did not like how it was archiving mail out of order and not in chronological order unlike outlook expresses void. I got them a gmail account which they never use. I want them to go web-based but I dont know how they can keep it is there a way to keep the address and use gmail but divert all the mail from firstname.lastname@example.org
to gmail? Modding the case is not on top of the priority list, Although I would like about the melted bolts and how to replace them with real screws as well as the best way to approach case modding.