this is something that i believe a lot of people are not aware of, but you can go to here
http://www.hlj.com/faq/q41.html and they have a link to a page that tells you how you can get replacement parts for a kit. you will obiviously need the parts informationfrom the kit so if you have the insturctions then you can order whatever you part you are missing. the only downfall is that you have to order the complete tree that the part came on but you then will have extra parts for other kits. as a matter of fact i have ordered 5 of those trees from my spo com kit for the seats for other kits.