Hi stonie
welcome to the forum
I use the pure freedom trolley and find it a very good piece of kit, you will find they are very popular and have been designed and constructed well. I am based in Nottingham if you are close by you are welcome to come and have a look before spending your money but tell us more about the kind of work you are going to use your system on. As there are other options open to you such as a backpack, Matts diy route and other suppliers any questions you need answering about wfp just ask there are many here willing to help.
regards
Brett