I can either get a 1979 Chey Corvette for 12,900 with rebuild chevy 350 and just looks bad ***

http://www.autotraderclassics.com/classic-car/1979-Chevrolet-Corvette-552218.xhtml?conversationId=229767

OR a guy is offering me a 1992 chevy k1500, in perfect shape, the interior is all redone, and he swapped out he older 350 with 454, and its stroked to 496 with all forged internals, edelbrock heads, edelbrock cam that sounds like my dads 1971 chevelle 396 (thumpity thump thump clack clack sound you know) and edelbrock intake. and borla exhaust. the tranny was rebuilt, something along the line of a 700r or something, I forgot the name of the transmission, and is a 4×4. paint is all new. he wants 15,000 for it

this is not the truck, but it looks like this, only dif. is that it has z71 on the back, and is a single cab not extended or anything -

http://www.google.com/imgres?um=1&hl=en&biw=1366&bih=661&tbm=isch&tbnid=IR5Lx81l7ctLdM:&imgrefurl=http://www.gmfullsize.com/forum/showthread.php%3Ft%3D27556&docid=j9HHDhy–9OusM&imgurl=http://tharf.com/images/may15/img00041.jpg&w=640&h=480&ei=QG8cT7vkM4PPgAer0t3WBg&zoom=1&iact=hc&vpx=727&vpy=354&dur=1134&hovh=194&hovw=259&tx=157&ty=134&sig=116979463298042631062&page=2&tbnh=139&tbnw=172&start=17&ndsp=24&ved=1t:429,r:3,s:17

OR my last choice is a 2003 Ford Mach 1 Mustang with new cam and heads, exhaust, for 13,000

I can afford all of them, just tryin to decide which to get. I am leaning with the first two, just because I my parents had a 08′ v6 mustang, and I have already had the mustang experience, and would like something different.