[chewit]

I have a 9800 project to do
1 thing do they work with non orignal batteries
2- What colour as need a new housing so pink black white or red
3- is the screen and touchscreen 1 part
4- whats it worth

[ZombieBerry]

Depends, there are some trusted third party battery manufacturers.

Sounds like a personal preference. You can buy a B/W Torch, so go with something exotic or different.

Blackberry Torch 9800 Disassembly - Touch Screen Digitizer Complete Take Apart Guide - YouTube

What is what worth? Your time? The parts? or a new/used device? Google it.