@Val
Sorry you didn't get any response on this one for such a long time ... maybe because it was rather a bit off-topic request placed in "reboot time" topic (... moved youre request as a separate and new topic to here as you can see).
But also because this forum is a bit less occupied lately (less and less people seems to post here, maybe because lots of issues about this module is being covered already?
But for you ... a tip:
for the lower 15 levels ...
kill and loot as much as you can in the easier parts ... you'll find soon enough what you can take and what's not so easy.
sell poor loot in the chests from Mad wizards pocket (starting area) ... and slowly build up youre gold stash.
Note about gold: My experience is that at higher levels ... gold isn't that important any more.
As for faster re-spawn ... dunno if its worth the effort to modify this GvM module for this.
Also its been years and years working like this ... never heard any trouble with loot re-spawns before.
But that's just my opinion
I'm quite incapable in doing so ... can't script this module ... just hosting it.