I agree for an SC is waaay too much, but you can find some very interesting deals in Canada, check the one in the link, has G50 tranny and is a 1987. Find in the US an 87 in good condition and calculate shipping plus duties plus GST and they're about on the same...
http://www.canadatrader.com/result/detailinfo.aspx?ID=23988548&pgno=1&srt=4
Check the PCA UCR web site, they have some good stuff there too:
http://www.pcaucr.org/forum/classifieds.jsp?forumid=104
Good luck!