Tujen feels weird with non-tradable currency

I just did a whole bunch of logbooks until I had 50,000 lesser black scythe currency.

I then spent like 4 hours at tujen just buying stuff, (Which was never my cup of tea, always sold my currency off in 3.15) and I am now left with
17k lesser
4.9k common
16 greater
1049 grand

This leaves me in a awkward spot where I have no greater currencies left. In expedition one would buy more greater to fill in, but now trading these is no longer an option it feels strange.

Maybe a way to exchange lesser->common->greater->grand would fix this?

Eventually, if I keep running logbooks based on my current spending habits I will cap out at 50k lesser while having 0 greater, which is very awkward.

+1