painted over SPID....help!

[purewhitemp5]

I recently bought a 1968 Chevy LWB Custom from my father in-law and it seems the PO he Bought it from painted over the SPID. I would like to know some history about this truck like : Original paint color combo ( truck was striped and painted a different color ) , original engine ( it has a mid to late 80's 4 bolt 350 in it now ) , what interior combo , it has no interior now , well it has 71-72 door panels , green sun visors , blue set of 67-68 metal door panels where in the bed , red dash and red (majority is red ) , green , white and blue cab interior , black dash pad , no seats , black seat belts. On the exterior it has Custom/30 doors and fenders ( father -in-law installed ), holes for upper and lower trim , studs for trim around the cab ( just below the rear window) , ss trim around the windows ( I have only 1 piece for each window ) , 6 bolt rally wheels , drums all around , it only has power steering , and original cab clearance lights.

Is there anyway I can remove the paint from the SPID to see whats on it , maybe even a glimpse. I would like to get all the codes and info to replace the SPID with a new one.
V.I.N. is : CE148T121986

Thanks in advance.