ALUMINUM BLOCK 0-326711 Value ???? Come In WHAT ??

[DRIVER155]

Hey Guys , I was askin on teamchevelle and one directed me over here . I know where a Alum. BBC block is and numbers are 0-326711 ....it's the first block listed on mortec.com . The guy wants a healthy price but not sure if it's real healthy . I heard they were put in factory race cars and only produced about 30 somethin . It needs all new sleeves and a couple head bolt holes repaired but other than that , it's nice . My buddy said the last time he saw one ...it brought $7500 about 3 years ago . I don't really know what it came in and wondered yalls opinion on the value ? Thanks