Diablo 1 HD Hellfire Mod | Awake

If I wanted to create my own mod Diablo mod, what would I start with?

I remember mod maker 2000 made things easier once upon a time but I can't get it to work. Is there something newer that will help me out?

EzModMaker 2000 works with Diablo v1.07

No newer tools released since then?

If I wanted to change music files, just as an example, how do I recompile it all back into MPQ's?

Another question, as The Awakening has a lot of graphical changes to both NPCs and the town map, were the changes learned through trial and error or is there a sort of method to the madness? CL2 animations, tricky business?

1.Every modding tools was released about 2000 year.

2.You can use WinMPQ

3. You can use The dark graphics tool.

And Awake is modded with version 1.09, how can I mod that?
WinMPQ, which version?
Is MPQEditor any better?

I am editing Diablo.exe with Hex Editor.It`s time-consuming. You can check also Charlie's Modworkshop. You can find it on TheDark mod website.
WinMPQ v1.64 if i remember corretly. Of course you can use Zezula's MPQEditor but i preffer WinMPQ.