Best replacement leaf spring - 69 Camaro

[Day2_69Z]

I'd say $1500-$1800 pair
If , being true NOS.
GM did have springs available into the 80's but the ones I saw looked like your typical replacements. Angle cut ends with slides impregnated into the individual leafs with sheet metal wrapped rubber spring clamps. These would be considered NORS
New Old Replacement Stock and look like 70 & up Camaro/Nova

The Reproduction HBC & Most Camaro vendors have the 4 leaf Z/28 & 5 leaf SS / HD Suspension Springs that are Beautiful......