to restore or to mod

im having a hard time deciding if I should restore my 70 duster to factory or to mod it . it is not numbers matching at this time an was wanting your opinion as to weather its worth finding all the matching parts? I have included me decoded fender tag.

VS29:
Plymouth Valiant,Duster
Special
2 Door Sports Hardtop
H0B: 340 275HP 1-4BBL 8 CYL
1970
Dodge Main, Hamtramck, MI, USA
194764: Sequence number
E55: 340 cid 4 barrel V8 275hp
D13: 3 Speed Manual Transmission-Floor Shift
FJ5: Sublime Exterior Color
D2X9: Trim - Luxury, Vinyl Bench Seat, Black
TX9: Black Int. Door Frames
B20: Build Date: November 20
151607: Order number
V1X: Full Vinyl Top, Black
A01: Light Package
A62: Rallye Instrument Cluster Package
G31: OS RH Manual Standard Mirror
L31: Hood/Fender Mounted Turn Signals
M21: Roof drip rail moldings
M25: Wide sill moldings
M31: Belt Moldings
N41: Dual Exhaust
N85: Tachometer
R11: Radio Solid State AM (2 Watts)
V6X: Longitudinal Stripes, Black
V8X: Tranverse Stripes, Black
Y05: Build to USA Specs
EN2: End of Sales Codes