help on setting market price for Box

[pecivil]

I am entertaining selling my 2000 box and considering what price to expect considering the engine swap. I am the 2nd owner & bought in 2004 at 37k miles.

stats:
2000 Arctic Silver Box
Sport Design Package
Sport Seats
CD Changer
The storage box thing behind the roll bars
M490 Sound system
67,xxx miles

Mods:
swaped in 2001 carrera 3.4l motor at 53k miles. Motor had 31k miles
Revo custom software for ECU
Supersprint Boxster S headers/200cell cats
Instant G Muffler (it sounds like a cup car hehe)
M030 Sway bars
Factory 18" 5 spoke Lt Wts with correct Boxster offsets
AASCO Lt Wt fly added during engine swap with new clutch
Factory Xenons
Evosport Intake
Factory GT3 front bumper cover
Factory Boxster S brakes
Factory Carbon Fiber Interior (except steering wheel and Instrument surround)
B&M shifter

have Roock (H&R) coilovers sitting in garage waiting for install which could be included in the deal

It runs like a top and goes like a bat outta hell. Just passed Cali smog last week.

Exterior is in good condition except for some rock chips in hood. Car is garaged.


I need estimates for a reasonable asking price. I was thinking getting 27k would be the absolute max possible, getting 18~20k should be easy, and something in between probably reasonable.

I dont need to sell, but am testing the waters.

TIA