Removing READ MORE should be easy with code injections - try this:
<style>
.post-footer .post-more {
  display: none;
}
</style>

It's much harder to add reaction/zap counts - existing themes don't support that. I understand that it's a pretty common feature that people would expect to have eventually, so it's on the roadmap, but we haven't figured out an elegant way to achieve that yet.

Thanks!