1. tq checks how fast you jump so you will get banned regardless of the tool you use unless you bypass/trick that check.
2.You will need to debug the client find the function that loops through nearby objects and call it, I believe there was one which retrieved the entity by index and another which gave the amount of objects nearby.
Once you have an entity address in memory you can read x,y at offsets 4,8 but you will need to do the following to get the actual values.
Code:
(x-32)>>6
(y-32)>>6