ive done series chassis builds onto Richards chassis (5) so far ,had alignment and missing hole issues on them all bar 1 ,,,,,and done defender rebuilds onto Richards chassis ,and also had alignment issues ,,,also done several defender 90 and 110 rebuilds onto Marslands chassis with wait for it ...........................................not a single problem !!!!! but in Richards chassis defence ,some probs where solved buy them (cash) and 1 chassis i did use had no faults ,,,!!!!!!!! so to cap it all off Richards 1 ,Marslands 10+