Ender 3v2.4.2.7BLTouch 400XL custom firmware issue

i manage to get the custom build files to work apparently the file names had been too long but now the printer wants to print to the far left front in mid air… I place a thread for a feature request or what not in hopes someone can make the file cause ive spent all day at this with absolutely no luck in getting it to work properly i dont know what i am doing i dont know what options do what and before i grab this thing and toss it in front of a train im just gonna have to deal with no BLTOUCH and just do the Chep video mode to use the full 400x400 bed. I am frustrated and ive used up credits made several custom build files with no luck so hope somoene can help or share their file if theyve already got a similar setup.

I have an Ender 3 Pro with Creality silent board 4.2.7. BLTouch and the bed deminsions are 400x400x700.