Questions on pricing a GTR

I am looking into the purchase of a 1990 Skyline GTR with MAJOR modifications listed below:

- APEXi HYBRID 2 CORE INTERCOOLER
- PANASPORT G7 RIMS
- BRAND NEW YOKOHAMA AVS ES 100 255/40/ZR17 TIRES
- RAZO CF GAUGE CLUSTER INSET, SHIFT KNOB & PEDALS
- PIAA HYPER BLUE/WHITE HID DASH LITES
- KENWOOD KDC X969 RECEIVER W/PANASONIC MID/HI SPKRS, KICKER IMPULSE 15" SUBWOOFER & EARTHQUAKE 320W AMP ALL INSTALLED BY MUSIC LAB OKINAWA
- CUSTOM PAINTED STRUT TOWER & VALVE/TIMING BELT COVERS
- K&N FILTERS
- ARC OIL CATCH
- HKS ADJUSTABLE FRONT SUSP W/HYPER DAMPERS
- ADJUSTABLE REAR SUSP W/PILLOW BALL MOUNTS
- TOMEI HICAS CANCELLER
- ORC TWIN PLATE CLUTCH & NEW TRANNY (LESS THAN 5,000KM) ON BOTH
- NISMO SLAVE CYL, THROWOUT & PILOT BEARINGS, CLUTCH SLEEVE
- TBO AIR DAM, BOMEX & VEILSIDE BODY KIT
- R34 BADGE
- HKS SUPER DRAGGER 80MM CATBACK
- TRUST 80MM FRONT PIPE W/80MM STRAIGHT PIPE
- GREDDY PROFEC-B BOOST CONTROLLER
- GREDDY DIRECT PRESSURE BOOST GAUGE
- HKS TURBO TIMER
- CF FRONT HEAT SHROUD
- MOMO COMMANDO STEERING WHEEL
- TOMEI SHORT SHIFT KIT
- WALBRO 255 CFM FUEL PUMP
- CF REAR EXHAUST PROTECTOR
- R-SPEED CLEAR CORNER LITES
- GREDDY OIL FILLER CAP

WILL ALSO PROVIDE TO BUYER:
- NISMO 550CC INJECTORS (FITS STOCK FUEL RAIL)
- HKS FCON V-PRO ECU W/COMPLETE HARNESS
- N-1 OIL PUMP
- GREDDY ELECTRONIC BOOST WARNING METER (BRAND NEW, STILL IN THE BOX)

She is a REEEEEEEEEAL beauty and a hell of a SCREAMER. She chirps thru 3rd gear and possibly 4th..... didn't get it that high to find out. IMMACULATE interior and exterior. Oh, and she does the 1/4 mile in just under 12 seconds.

Any feedback on what a good price on this car would be greatly appreciated. Also, what kind of price could this bring in the U.S. before legalizing it?