Got a M103 3.0 litre in Campbellfield with 80,000Ks on it for around those dollars. Comes with head and accouterments. There's a workshop there where you can fit the engine.
P.M. me if you need a contact number.
It's got it's 80,000 K transmission attached to it - if you interested in that as well.
Engine came from a 300e.