I agree with you on donating a sealed kit...parts do not get lost in transit...I run a small disabled builders group here and have lost a part or two before but was lucky to have replacements for them. All shops I have dealt with will not allow you to return a opened kit so its a catch 22 thing...I have had factory sealed kits missing something before or damaged too...craziest one was 65 Chevelle wagon kit sealed but when opened it had a 63 Impala HT kit inside????