Chevette/Pontiac 1000 heater core

[Roger24]

http://www.heatercore4u.com/2-261.htm
This would fit my case perfectly (I have 7.4" height to spare), the problem is I can't get hold of one, or even a scrapped Chevette/Pontiac 1000 here. There's a online database here where all the car demolition companies in Norway put the cars they receive and the parts they pick off them, but I couldn't find those two models there.
Do any of these cars have any other names? Are there other models that use this heater heater core?
Any other heater cores of equal height (including in and outlets) or less?

 

[RoadWarrior]

Those are General Motors models, so check out Opel and Vauxhall models. Those are the european GM brands.

 

[Roger24]

None of the Opel cores fit.
Are there any heater core manufacturers other than Fedco that have pictures/dimensions online?
$17 is cheap, but the those two webshops that had the chevette core only ship inside the US.
How much do you think it would cost to have it shipped overseas the cheapest way?

 

[racecar12]

Have you gone to any your local auto parts stores to see if they could order it for you?

 

[DodgeViper]

I was going to ship one of my Chevy Chevette core to Slovene and it was going to cost $21.00 through USPS.

 

[Roger24]

Are there other sites with pictures and dimensions of heater cores? http://www.heatercore4u.com doesn't have all the brands/models