So as a few of you know, I am in the process of a low dollar build, nothing fancy.  After digging around for various Walbaro 255 or Bosch 044 pumps, I decided to search to see what cars the Bosch 044 pump came on.  Low and behold from I can gather it came stock a quite a few cars.  The part number for the 044 is  0 580 254 044, which is an external pump.     
I search for the part number on this cross reference list and found that the 044 pump has an alternative part number of GCL606 which I found in this cross reference chart: 
https://docs.google.com/viewer?a=v&q=cache:O8irqfnoDGkJ:www.ijwalsh.com/Walbro/OEM%2520part%2520number%2520cross%2520reference.pdf+&hl=en&gl=us&pid=bl&srcid=ADGEESiF9Ydv7vTFePlsovb_Kxv-7ndT2Nbqh-fQMQsFPHb1RjSQFhM8SdyfIUaSaaKfdFDhU56sWGeRmkoZaSg9cfDOl0SUP7tEHooGxGcuaOqe0Nv3LQJEEbE9aZkSTgI7FX01Ua4l&sig=AHIEtbRCfAdJ_qhCD0-fjzCTc6Kc8RRfow   
Shockingly the pump has been found in various Porsches, Afla Ramero, Peugot's.  The find is that they also came in Volvo's that came in the 2.0/2.3 Turbo engines.  I found the complete list of vehicles that came with the GLC606 through this link: 
http://www.fuelpumps.com/index.php?main_page=advanced_search_result&search_in_description=1&keyword=GCL606&inc_subcat=0&sort=20a&page=3   
I found a salvage yard that specializes in Volvos and offers 100 day warranty for their parts and I have one shipped to my door for $50.  I am keeping the car N/A for the time being and that will give me plenty of time to piss around with cheaper fuel pumps.  It's a normal thing for the 700 series volvos to have 200-300k mileage.     
I may have stumbled on a way to save some while keeping genuine German part quality.  As I find out more,  I will post what I find.