An inexpensive alternative, use you head and bolt on to this used short block out of a Saab,
You'll have to research to ensure this low pressure 03 to 07 engine will fit and bolt up
Maybe even just the crank and rods, for $450.00 you might want to contact a local engine builder and explore these possibilities

http://m.ebay.com/itm/OEM-SAAB-9-3-03-07-Engine-Long-Block-Assembly-B207L-Low-Pressure-Turbo-2-0t-141k-/111743806231?_trkparms=aid222007%2526algoSIC.MBE%2526ao1%2526asc20150519202348%2526meidae3a57184a6949c7af6fa0791959b8e6%2526pid100408%2526rk1%2526rkt3%2526sd361337132519&_trksid=p2056116.c100408.m2460

 

And don't forget Jasper Engines, they give you a 3 year/100,000 mile warranty on their Reman engines, and they build 'em as good as, or better than new.

JASPER Engines & Transmissions: Remanufactured engine: diesel, marine, import

 

3 year/100,000 miles? That always seemed like an odd combination to me. Doesn't seem like enough years.