you'll need a hot bed - and ideally an enclosed printbed.
For this project abs will be best.

Vapour smoothed abs will not only hide any joins but smooth the the whole piece and make it look a lot more professional. And save you having to do a lot of sanding.

Resolution wise - yeah 0.1mm is about as good as it gets.
Bear in mind that the diameter of the bead is the actual determiner of final resolution. So think 0.4mm width rather than 0.1mm height.
You can realistically go down to 0.2mm nozzle diameter - but printing with such a small nozzle can be difficult.

Have a look at some abs before and after pictures that have been acetone vapour smoothed.
And pm sebastien - he's the abs king :-)
You'll need to make a large container. Bassna - made one for a multi-part giant tyrannasaur head - check that out as well :-)

As far as enclosing the bed on the wanhao i3, which is probably your best bet to start with - a large cardboard box seems to be all you actually need. Maybe with a see thru window inserted - laminate pouch and tape, would do the job :-)