Bandsaw will probably be first. I can make a spindle arbor for my stationary drill press, and an oscillating spindle sander is not a huge expense. I have a belt sander already that will work interim.
Any must have bandsaw options or size? Minimum depth etc that one should have?
I do want a floor model and not a bench model.
The size bandsaw you will want, depends on what you plan on cutting. I imagine all the advocates of 14" or smaller saws, are just resawing pre-milled lumber. If you plan on making your own lumber from small logs or splits, you can get by with a 14", but from the get go you will be wishing you had bought the biggest one you could afford.
Most 14" saws have a 1hp motor. The wimpiest 18" has a 2hp. A Grizzly 14" is going to cost $800++
If you can wait till they have a sale, you can likely pick up an 18" for 50% more money and get at least 50% more saw.
Oh and I should add, the dust collection on standard 14" bandsaws is worthless unless modified.