Hi Kris,
Thanks for getting back to me and sorry for the delay.
We’re mainly interested in finding an expert in OpenSearch to help us out when we get stuck. As a developer myself, I would rather learn and build what I need instead of differing to a 3rd party service.
I’ve made more progress on my autosearch project. There’s a good description of how I’m doing my queries, here: Creating an Autocomplete Using OpenSearch.org Docs
Many thanks again for your time!
Best,
Daniel