I have a setup that is somewhat similar to yours (Sony A6300, SeaFrogs housing, UWT trigger) - I shoot it with a pair of Retra Pros and I'm very happy with them, but I understand that it's outside your budget (especially considering those damnable import fees; the customs really did a number on me when I got my pair!).
If you're doing mostly macro, then I would say go for the MF-1 pair. They're compact, and the design, with the long stem, makes fine aiming (as is needed for snoot photography) more convenient. I haven't seen the AOI Q1 in action, but the specs are extremely unimpressive. Z-330s are good strobes, but for shooting wide-angle, you'd really want a pair, and for macro, two MF-1s + snoot is better than a single Z-330.
Another 'budget' strobe that you might want to take a look at is SeaFrogs SF-01 - it's got good power and is reasonably priced. The features list isn't the greatest, but for wide-angle photography, two of those will do a better job than a single Z-330 at the same price. I had SeaFrogs' previous strobe model, the ST-100 Pro, and was reasonably happy with them until I upgraded to the Retras and sold them on. Also, buying from China (Aliexpress, etc) will most likely avoid customs fees even though the package is above $75 value; they generally don't bother checking this stuff.