The OP in a nice organized manner
-The standard setplayerscale limits you to 0,2 - 2, while the max you could to in script is 5
-There is a mod, which lets you change your 3 different scale parameters, length, width and height, but also limited to 0,2 - 2
-There is a mod that increases the standard limit to 3
-The OP wants a 3 axis player size changing event, that can achieve the max 5 in TS, with an event.