Oh , incidentally , I work in photography/video production and well know that it doesn't matter which estate car you have , it is never big enough .
All the same , an E Class is a vastly much better load carrier than a C Class - much more load space plus self levelling suspension which allows you to carry more weight .
W124's are fantastic , but getting on now and you tend to either find cheap ones that need work or really nice ones , at a cost .
The W210 series which followed are very good load carriers , many had rust issues so check carefully , but there are bargains to be had .
You might pick up a bargain , high mileage W211 , but they can have issues of their own , particularly the SBC brake system on early ones .
All worth consideration though .