If you flashed the required firmware your hboot version should be 2.16. Just boot into bootloader to find out which version you're using.
And the correct TWRP version is either the modified version 2.6.1 you can download from the MaxismusHD thread or the modified version you can find in this thread. Look at post #3 to find what you're looking for.
all i want is my storage back and for it to remain unlocked for all sims,
can i just re install stock rom and keep the simlock unlocked
dont care for options or tweaks.
If you want to install MaximusHD you will have to follow the install instructions in the OP of the thread and this will upgrade your hboot version to 2.16 and install TWRP 184.108.40.206. Then your phone will show the correct amount of storage. Word of warning, some people have had problems with in call quality on 4.2.2 sense rom's, it seems to affect some phones more than others. If you don't want to do this, you can install Viper which is also 4.2.2 and keep hboot 2.15. Or you can use and RUU to go back to stock, your phone will stay sim unlocked but the latest official version is android 4.1. The RUU files are here, you can also use this unofficial RUU based on 4.2.2.
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