Lighweight needs new chassis

Im after putting a new chassis on my lightweight, but I would like to coil spring it and use later axles etc, any suggestions as to what chassis would be the best starting point? I have seen somewhere others have been put on a range rover chassis and i saw one the other day on a 90 chassis - is this more trouble making it fit than its worth?

try designa - they do coil chassis fur series - not sure about a lightweight as some peeps do a special chassis fur them - but ask.