I know this is an old thread but I wanted to conclude - I eventually gave up on getting one of these dispensers as I couldn’t justify the £95 cost, but instead have found a much cheaper and simpler solution - a £4 dry food container which has a funnel/spout at the top making it easy to tip Huel out of!
See new thread here with more details and video - just in case this is of interest to anyone who was following this thread!