This is a ported xperia rom based on vm4.3.5
PLEAS GIVE ME FEEDBACK IF IT WORKS OR NOT
If you have any questions or trouble, comment or send private message.
- kitkat (4.4.2)
- rooted
- busybox
- many many more (see for yourself 
)
flash the right kernel for your battery
Since this rom is kitkat, your memory will be repartitioned. If you want the 2.5Gb internal memory again and only sd-card to store media, apply this app:https://drive.google.com/file/d/0B_82GlS79UYrVHRMbU1fbURGb28/view?usp=sharing
install and use the app (choose 2.5Gb, 2.7Gb won't work properly), then go to system settings-> accessibility->disable the phones memory
(don't forget, always make backup before installing custom rom)