You have two options for your base ROM:
Why repack instead of building from source? For older devices like the T113, building a modern Android version from source requires extensive hardware-specific device trees, kernel sources, and considerable computational resources. Repack approaches allow enthusiasts to create functional custom ROMs more efficiently by leveraging existing builds as a foundation. samsung t113 custom rom repack
A specialized repack found on sites like AndroidFileHost that alters the UI to mimic the iPad experience. Pre-Installation Requirements You have two options for your base ROM:
Flashing firmware carries an inherent risk of bricking your device. Ensure you have the following ready before starting: a recovery module
nano system/build.prop # Add your tweaks
Would you like this as a flashable ZIP workflow, a recovery module, or an ADB/PC tool?