how much should i ask for mymustang?

unfortuneatly im gonna sell my mustang its the ninth foxbody ive owned. i love the car i just wana get the extra cash to finish my cougar project. my cars an 89 coupe with a 32valve 4.6 dohc mark viii motor . it was a road race car has a kirk bolt in cage hydroboost brakes and mach 1 suspension and front and rear rotors . the cars gutted no interrion aluminum door panels boltin cage a harness a hollow dash hollow bumpers etc.. should weigh more than 2500lbs. has the mach 1 rear 3:73s offroad x pipe and flow masters . adjustable crank trigger . it comes with a 3rd link suspension set up that i removed cause its for road racing im into drag racing. im just not a a huge fan of 4.6s i know 5.0s like thee back of my hand. the cars got a built 40rw trans with mild stall and shift kit. it runs and drives great and gets 20 plus miles per gallon. just trying to get a ball park figure as to what i should expect im gonna post on craigslist this week and possibly ebay. i know its worth a lil bit of money as the swap was done right. it was done at a ford dealer in west virginia by a master ford tech.any helps appreciated