So, this brings me to investigating fonts which have variable axes beyond weight and width. I found Varianz, which I love and fits perfectly with the resistance to categorisation concept as its axes change it from sans serif to serif, but unfortunately the group just doesn't like it. I'm still fighting Varianz's corner and asking them to put concept above personal preference, but I'm also going to look for other fonts that have interesting axes that aren't weight and width.
I've scoured Nick Sherman's amazing www.v-fonts.com and there are some great options there, but all I've found apart from Varianz are out of budget. I should add that the client is a not-for-profit gallery/charity and their budget, once print costs are paid for, is very modest so this will come out of my fee, so I'd ideally like to keep it to less than £100.
Does anyone know of something that might fit the bill? Are there any other resources that I should know about?