This to me looks like it’s time to buy a new bed, stick with Creality or is there a better brand to upgrade to?

There’s not these are pretty broken in sheets that I’ve had for a while

I just put a metal ruler across it, and there’s a noticeable gap

Bowden and Marlin

Well not necessarily, you just give the mod tools a different api to use. It’d be simple, but you’d still be restricting some stuff for api tools