The free ones:
Season 4.6 - RMST Tornado-Stable, lots of customs, custom jewels,etc.
- WZT Improved 4.6-Lots of customs,etc.
Season 4.5 - Project Season 4.5 1.03H by Professor Flint and Stone-Lots of customs, nice client, customs jewels,etc.
Season 5 or 6 free, nothing that worth open an server on them.
Cracked files.....not my area, not an fan of cracked files...to code an server or client with lots of customs and with less bugs, and then your files, after you work and test months...cracked...well, no comment on that.
Now...private coded files you will have to go to the teams web and talk directly with them about prices, files, customs, support,etc, and then decide who worth your money.