You are exactly right to be cautious after the GASP headache! But here is why migrating to your other TPS framework will be completely different and much easier:
Why this will work smoothly (Unlike GASP):
No Hidden Systems: Your other TPS framework uses a standard character blueprint and a normal GameMode. It doesn't have GASP's overly complex level-streaming and modular swapping.
The Magic is in the Component: Because my inventory is built into a self-contained Actor Component, you don't have to copy-paste code. You literally just click 'Add Component' on your favorite TPS character, and the entire inventory system is instantly inside him.
Keep Your Perfect Animations: Your TPS framework's Aim Offsets, weapon transitions, and movement will stay 100% intact and untouched.
Simple 3-Step Migration Plan:
1. Add the Component: Open your favorite TPS character blueprint and add my Inventory Component.
2. Bind the Input: Create an Input Action in that character (like the 'I' key) to Create Widget (my Inventory UI) and Add to Viewport.
3. Fix the Widget Cast: Open my Inventory UI Widget, find the Get Player Character node, and change the Cast To node to target your preferred TPS character.
You've already learned how the casting and components work from our GASP troubleshooting, so you will breeze right through this!