No offense (now I can say offensive stuff regret free 😁) but a 12t titan = 💩. Brushed vs. brushless is night and day difference. Same with Nimh vs lipo. I wouldn't be involved in this hobby if we were still stuck with the old battery tech. Lipo was a game changer for me. My advice to anyone...
You'd be better off getting a brushless combo. That way you have a motor matched to the esc. That titan 12t wont last long anyway. Hobbywing is a good option. Castle creations is another good option.
I almost forgot..... you water cooled an XL5?