The Area's a Bit Sketchy

This dataset records no EXP, no gil and no turn-in item for this leve, nor for any of the other 12 Lv 40 battlecraft leves, so the whole rung is left unranked and out of the search index.

The closest battlecraft rung that does carry one is Lv 50, 10 levels above this page, where the best of 6 leves returns 839 gil per allowance.

Whitebrim Front, Coerthas Central Highlands issues 52 leves in this dataset, all of them Lv 40, across 13 disciplines.