None of the kits of planes with retracts ever had landing gears in them. Of course, this was in the day when the kits were balsa, basswood or pine, BP (before plastic). Even the first plastic kits I built did not have gear if they were retractable planes. I believe a P-80 was the first plastic kit I built. The kits all included plastic stands, even the kits of fixed gear planes. Non-flying models were always displayed on stands with plane in flying position.