Thought has crossed my mind

I'm sure that alot of you guys have thought about selling your ride... The thought has crossed my mind for the last year.... I am just not sure what is a reasonable price range for what i have ... I am not going to give it away .. i have been told what i have and the condition it is in .. is far and few in between ..When i purchased it ... my main goal was to maintain stock appearing ext/int ... but underneath high HP/TQ.
If i put 500 miles on it a year it is a miracle ..

The reasons why i am thinking of selling ... Not because i want a Hellcat :)

-NO time ...
-I am around cars minimum 5 days a week .
-i drive high hp ... very expensive cars regularly every week .
-I cannot believe the vehicles that get trophies at car shows ???

1969 Dart Swinger .... T5 with saddle interior ...
Originally an Oregon vehicle ...
ALmost 48000 miles ...
Have original build sheet and fender tag...
340 and 4 speed number matching ...
ORIGINAL paint .. but left rear quarter ...
Does have some small dents/dings ...
ONLY slight rust on rear glass corner area ..
Small bubbles under lower rear stripe ...
Interior is in EXCELLENT condition !.. ( chrome /seat belts/dash trim/sun visors/headliner )
Exterior chrome in like NOS , but SLIGHT chrome flaw on front bumper .
Door weather strips like NEW ( Original )
Under body in EXCELLENT condition ...
Inside frame rails -SMOOTH .. NO RUST Scale .
Things i have done ..

- replaced interior carpet ( changed from black to saddle).
- converted front brakes to KH's ( the correct way ).
-ALL stainless brake lines
-Differential complete NEW , powder coated everything.
- SS prings
- Aluminum drive shaft.
- Rear brakes ALL new parts .
- power coated bumper brackets .
-Moser axles - small bolt
- rear wheels built by Stockton in California ( small bolt to 15 inch )
- painted wheels T5 and installed NEAR MINT dog dish caps .
- Rebuilt and power coated alt.
- Replaced eng harness.
- All in one Pertronix dist.
-Power coated factor manifolds .
- Has Dual exh 2 1/2 -2 1/4 With factory tips .
-Correct period battery.
-High torque starter
-Aluminum Griffin Radiator ( Appearance like ORIGINAL ) , i still have factory original .
-New Factory appearing carb , i still have original .
-Factory appearing aluminum intake , i do not have original .
- Replaced sill plates
-I have not done anythiing to engine ... but it is wrong color ... I am thinking previous owners may have gone through engine ??

What it needs
- left rear quarter paint work. ( Paint is checked ... incorrect prep prior to painting )
- driver door striker work ( Cracked near weld ).
-passenger door glass ( slight chip on top edge )

If i keep it, what i will do next .
- Replace trans with PASSON 5 speed
- MRL 500-600 HP stroker .

I value your input ... i appreciate your help all these years ...

Thanks