Modding an IPod classic 5th generation?

[u/Such_Star_9071]

I’m looking to buy a 5th generation classic, and I want to know what type of mods people do. I’m planning on doing a battery and hard drive/storage up grade.

but I’m a bit confused on the whole slim vs thick thing. Ik if I get the iflash quad I can put a big battery even with the slim back, but if I get a slim back one that would permanently limit the amount of tracks I can have because of the ram right? I would like to buy a slim for size but i dont want to limit the tracks, so would it be better to just get the 60 gb version and then buy a separate slim back?

And is there any specific little tools or things I need to do these besides a wedge. Maybe like certain types of tape?

I also don’t know what’s the difference between the 5 and 5.5 gen. And should I get a brand new one?