Help with commandline for md5 hash crack

[Snoopy]

tl;dr dont try it

after some trying around, even halfing the mask isnt enough for mode 6, the longest mask without overflow for hybrid attack is ?1?1#?1?1?1?1

i pregenerated the first 500.000.000 passes (see below) and started hybrid attack with

hashcat -a6 -m0 -O hahsh.txt 500m.txt -1 ?1?1#?1?1?1?1

the result with an RTX 3060 is 11.000 MH/s -> ETA 3 Years and this is just the first 500.000.000 possibilities of 3.656.158.440.062.976, dividing this yould take 7.312.316 more of these pregenerated dicts, so cracking this hash will be somewhat of impossible or a really lucky shot

JFYI
pregenerating mask is
premask.txt

Code:

?u?d,COMMDEPT#?1?1?1?1#?1?1?1?1#?1?1

possible combinations, each password candidate would consume 23 bytes, 21 bytes string + \r\n (on windows)
3.656.158.440.062.976 * 23 bytes, yeah some PETA-Bytes

hashcat -a3 --stdout -l 500000000 premask.txt > 500m.txt (~11 GB)
the next one woud be (using start option to skip the first 500.000.000 for generation)
hashcat -a3 --stdout -s 500000000 -l 500000000 premask.txt > 500m.txt