https://www.amazon.com/dp/B01JYCVHLK?psc=1&ref=ppx_yo2ov_dt_b_product_details (Digital) I used this one, but you can try another simillar.
is easy only need remove the hotend and insert with the screws for the hotend, need also a screew M3x16 and a nut. in makerworld have many tools to adjust the bed with the prove in the midlle of the bed I put in Zero and test all the corners and try to put it all of them in Zero 0.
NOTE: put the bed the most closer possible to the tool 10-15 mm works fine and after turn off the printer.
The author marked this model as their own original creation.