Printing portable N64 console housing

[3dkarma]

If I were to print the bottom half and then the top half, will the 3d printer accurately print the housing along with the screw holes. I may end up building a few for friends so accuracy and precision is key!

A well-tuned printer is more than capable of printing the housing with the screw holes.

Do most printers have the ability to print smooth surfaces or will I need to sand it down for it to be perfectly smooth?

The first layer you print will be smooth as the plastic is "smooshed" into the print bed, which is a nice flat surface. The top of the piece can be reasonably smooth, but probably won't be as smooth as the bottom. The sides of the piece will have ribbing that will be less than a mm high. If you want it absolutely smooth, you've got several options: if you're printing with ABS, you can smooth by wiping with acetone or in an acetone vapour bath. PLA can be smoothed similarly using THF (fair warning: acetone and THF can be hazardous to your health). You can sand it, you can spray it with plastic filler, sand it and spray over with the colour of your choice.

Can most printers create threading? I can easily tap each one, but it would be very cool to have it come out ready to assemble.

Yes, but I wouldn't rely on threading smaller than about M5. Use self-tapping screws for your needs.

what would an estimated time frame to print out a full bottom/half roughly 7x5x1.5 (If I buy a printer I would probably spend 1-2k) ---I realize this may be a very vague question but I'm just looking for a guesstimation

Couple of hours.