Default [Q] [DEV Help] How to make a Custom ROM Based on Stock .96(XAS)

Guys .. I'm trying to develop my own rom based on Stock Acro S (JB .96) however there are many tutorials that are not giving a good development base for me, because there tutorials for ICS and JB using different tools and OS ...

I already developed my own kernel (not unlike the Stock Cabatro's .96) because I cant founding something concrete also talking about adding the governors / schedulers and modifying the frequency tables ... (I need help on this too)

In general wish someone would give me a faithful way forward to make the Beta ROM (Stock .96) and Kernel version modified to provide to users on forum for testing...

Any help on this would be great

(I Can Develop that on Ubuntu 12.04 and Windows 8.1)
Devices History...

Sagem MY X5-2 -> Nokia 6060 (i still using sometimes) ->
Sony Ericsson W580 (Acoustic Driver Modded / .Elf + Patches + Camera & Display Driver Developer)
Sony Ericsson K850 /Same ^ | [ShadowD / Xx_DvD_xX / Xz_DvD_zX / Xx_DaviD_xX - Drivers]
Sony Ericsson C905 /Same ^ | [ 4shared ALL]
Current Device: Sony Xperia Acro S