There's a thread in a German forum about durability where a couple of people shared how many hours (systematic) training and match play they get out of e.g. K3: range is about 20 hours to 50 hours... When I used to play with ESN rubbers (mainly on backhand) I got around 40 to 60 hours. Today I would guess about 10 to 20 hours less because I'm using BH more often and hit harder.
Racket control suggests that you are playing on a high level so my guess would be that durability will be on the low end of this range.
Codexx EL Pro 52 is closer to H3 than K3. Had average durability but was quite heavy (afair >50g). Rakza Z Extra Hard should also be closer to H3 (only played with the normal Z for a while, higher trajectory, less top end power and spin compared to H3) but also heavier.
Otherwise I would get H3 in 2.1mm (remove glue layer from Neo) and a Stiga or TSP/Victas magnifying glass to check rubber thickness. Should be more accurate than using a net gauge and way cheaper than the devices from Butterfly or DHS 1)
1)
https://www.tabletennis11.com/other_eng/dhs-tt-rubber-thickness-measurement-double-standard