Not sure how you intend to drive but you get what you pay for. In that I only buy used parts from EBAY the springs you showed are cheaper at jegs
Jeggs
Moog 5762
Front Coil Springs
1963-82 Corvette
Front Springs
Item# 719-5762
Ships Today
Only $47.99
More Info
Also the steering kit is awful cheap, who makes the parts? I prefer Moog or similar Known brand, you can get Chinese made ball joints cheap but they are not that great. Metals are not as good " yes they pass the standard but the standard isn’t that high" and gain you get what you pay for. Also I like poly bushings to stiffen everything up a bit but nothing wrong with stock rubber.
Jeggs
Moog 5762
Front Coil Springs
1963-82 Corvette
Front Springs
Item# 719-5762
Ships Today
Only $47.99
More Info
Also the steering kit is awful cheap, who makes the parts? I prefer Moog or similar Known brand, you can get Chinese made ball joints cheap but they are not that great. Metals are not as good " yes they pass the standard but the standard isn’t that high" and gain you get what you pay for. Also I like poly bushings to stiffen everything up a bit but nothing wrong with stock rubber.