Ok I finally got closure on this after talking to customs and an RI. The C5 was an export only car and technically doesnt exist in the U.S. These can not be re-imported into the USA without petition. That can take months/years. So I am not closing the deal on that. However a 1992 and 1999 model can be imported at an average cost of $6000 for needed mods...still a non player. Any car over 25 years can be imported as exempt (just like my Hakosuka was). So I decided instead of buying the total restored 1981 for $25K, I found a cheaper 1981 that I can take back when time comes and still turn wrenches on (engine upgrades etc) until we leave. Too bad for me because I really wanted the C5. Here is the one I am def getting as we speak after much much consideration... http://www.goo-net.com/usedcar/spread/goo/15/0130090403D4002513002.html
Man these cars only had 190 HP....guess Ill go nuts till I get a good 350 built for her. I suppose the same build I have for my 240 will do...some AFR 195s, Comp 276 cam, headers, 9:5:1 pistons, single plan intake and holley 750 should waken her up quite a bit. Wouldnt mind a 700R4 either as it currently has a TH350. 49,000 miles. Ill be glad when this is over...selling the 2JZ TT Aristo for $2500......