Boats to build, from the small to the not-so-small:
Two-masted schooner from Seaworthy Small Ships
T27 r/c racing sloop from Tippecanoe Boats
Independence r/c sailing model from Chesapeake Light Craft
I am also partial to the Sea Fleas.
And one to work up to: Skerry 15' sailboat kit from Chesapeake Light Craft
Related: a shipbuilding song; building your own plank-constructed pond yacht.