Waste of money mate,i spent £1000 on a trolley with a pole i have only used once and dont like using the trolley much,they are big akward to get up steps and being 50 instead of 25 litre will be a nightmare!
You should really make sure your making the right decision as you could regret it.I have!
In my defence the only reason i went down the trolley route was because at the time i was using a crew van for my business but now have a doblo!
You say you live in a affulent area and have all these custys and its all in the same area,you dont need a trolley,just get a backpack and a diy van system and better poles!
Them xtel are terrible,i have one i used it once and then bought new poles!