http://www.hetzner.de/en/ check servers here...and tell me which would be perfect I will order it and then need someone to make a node on it..
If want to run a hallmarked node, get anything over 1 GB, the more GB RAM you can afford, and the more weight your hallmark is, the better
If it's non-hallmarked, 512-1024 mb RAM vps could do, 1 Gb is still better.
OS debian 7 or centos 6, 64-bit.