They will be a little baloonish.
Personally, I like to use either the old goodyear MLVW tires if you can still find them, or else the 11.00-20 non-directional from the USA. Titan brand has worked well for me. There is a seller right now in Wisconsin who has the 11-20s new for $125 USD each.
http://www.ebay.com/itm/TITAN-T-HAWK...9YLiNq&vxp=mtr