How big was a 500 last ship in 1630?

At least one Dutch ship in service in 1630 or 1631 was 500 lasts. I would almost guess that it was of East Indiaman proportions, perhaps 160ft long. that would be something like 160ft x 36ft x 18ft. If you generously rounded the figure, and slightly adjusted the factor, that would be "500 lasts".