The resolver information for Dynomotion can be found at https://dynomotion.com/Help/Resolver/Resolver.htm
That example uses their old obsolete KMotion board, but the same can still be done using a KFlop + Kanalog.
If you did want to give it a try, I do have a spare KFlop + Kanalog board you could borrow.

I did do a quick bit googling, and this is the only active product I've found so far - http://addi-data.com/products/resolv...tal-converter/

RS do have an entire section of Resolver to Digital chips, but even the bare chips have some interesting price tags, so I'd imagine that converter will be at least a couple hundred euros, if not a lot more!