Good score, its hard to find deals like that today. If only we could turn back the clock, in the 90's i was paddock bashing and jumping early Commodores that are now pulling $40k. I'd be sitting in a beach front mansion smoking cigars now if i stuck them all in a barn back then lol.
Yes you will regret it if you sell it now, i go through phases of wanting to sell mine too then i slap myself. It's a VK with a 355, TH400 and Ford 9" diff.
Really nice mate, rare colour is it the original paint? Is it called something like opal blue? I had a VK in a similar colour years ago which was called coral blue.