Or, search around for used gear. Even an AVR that is 10-15 years old will work as an amp. I know this is a US forum, but audiophiles are pretty much the same in that they can often find themselves, gear rich, and money poor. The Denon I use (3805) is from around 2004. One was given to me and it worked so well that I found another for $50. Now I notice that they are reasonably common.
Audio equipment is kind of like spare parts for cars. Once you start looking for one to fix the problem, you'll end up with 3. Audio gear is also like cars in a way, that once you start driving a certain model, you will notice more of the same on the road.
You should be able to find a used model with 100 watts or more into 8 ohms. If you try to budget a new one, adequate (headroom) power always seems to be the sacrifice.