WTB 2003 Mazda Protege DX 2.0L Engine

So my 2003 protege has lost compression in cylinder 2 and is burning coolant. I’ve had 2 mechanics say that the head gasket is leaking and I need a new engine. Looking to buy one to use or use for parts to rebuild mine. If anyone has or knows of one available, PLEASE let me know! I appreciate it very much in advance!