Jin did not build a Mecha Titan from scratch since he didn't have the resources nor the money to accomplish such a feat. Instead, he had used the Titan Knight from the Dungeon World and constructed the Mecha around it. (So much for not asking his minions for help, but he did prepare a nice present for Titan Knight, plus it was unaware about the feast.)

As the exterior was already in place, Jin mainly focused on repairing the internal parts as analysed by the System and gave him a new pair of 'legs' to boot.

For now, Jin used the caterpillar tracks from the Sherman Tank blueprints from Hou Fei. He would have preferred to wait until Amura Rei shared some of their world's Mecha blueprints as a reference, but as time was of the essence, he needed to use the Titan Knight now to catch the giant monsters for the grand feast.

Therefore, Jin installed the caterpillar tracks on the Titan Knight as its first iteration and made it modular in nature so the parts could be swapped when he finally had his hands on the Mecha Blueprints.

The Titan Knight was rather satisfied that he finally had something to move around instead of being forced to hand around like a piece of clothing by the System in the Sanctum of Worlds' Guest Instance.

Initially, Jin wanted to just install the Hover ability from the Lost Technology, but it required wires sticking through the Titan Knight from his waist below with a portal constantly opened to the Guest Instance. With that method, he could be operating without the worry of his energy drying up.

But on second thought, Jin believed it was too risky with too many exposed parts. (Not to mention all the debris falling into the Guest Instance. The System would most likely complain even though it had the capability to clean the mess. Also, the System did berate him about the expenses about having a giant moving portal out for that long.)

After putting the Titan Knight on tracks, Jin further modified the internal compartments to install a cockpit inside, allowing the dungeon supplier to not only have a better grasp on the controls if needed but also to gain an easy way to insert Maqi into the Titan Knight's body.

This could potentially reduc