OP here, first of all thanks for the replies. In the end I got the rulebook amd the bestiary for 60€, quite happy about it.
I love WFRP but sometimes I feel like playing something more heroic and less crunchy, hence the interest in Soulbound. I still don't totally dig the AOS style but the books are organized nicely and the "Champions of" series seems kinda neat. From what I've read, Champions of Chaos is in the making and that would be great