I may need an engine for my 81 300D!! Car only has 138 kmi and looks great, but PO did not care for engine properly; car has been using (not leaking) oil excessively (qt/300 mi); pressure has been good 'til today; now, pressure hangs near 0 at idle, creeps up to 3 when revved.

Wher can I find a perfect, "low-milage" engine for reasonable price? Thanks.