I'm guessing the vessel would have been fully equipped to make the trip in Trinidad which is where it was heading.
Very roughly it's 1600 miles from Trinidad to South Florida.
Assuming a steady 25 knot cruise, that's 64 hours, less than three days.
Again, making an assumption, let's say those four outboards were fairly modern, less than 20 years old, four stroke, 200 HP models, Mercury, Yamaha, Suzuki - they all burn roughly the same amount, 6-7 GPH at 3000-4000 RPM, which is more than enough to maintain that 25 knot cruise on a vessel that size. 7 x 4 = 28 total GPH
That's 28 GPH at the high end. 28 x 64 = 1792 gallons.
Round it up to 1800.
That vessel could easily hold that much fuel, along with drug cargo, again, making an assumption that it wasn't a bulky product like weed or something. And again, making an assumption that they did not have pre planned refueling vessels along the way to meet them.
I saw journeys like that, on vessels like that, done numerous times, during Bill Clinton's Haitian invasion in the 90s.
Not taking a stand one way or the other on the legal or moral justifications of this strike, frankly I've got more pressing outrages to worry about.
But whoever those guys were, they most certainly could have reached the US in that vessel, in a fairly short period of time, even when making assumptions about the routing and planning.