$5000.00 in set up cost,
$630.00 a set to have them made,
Made 14 sets = $9100.00,
Plus 3 Proto type sets = $1500.00
A 36 lb. block of billet aluminum makes one set
Chromoly taper pins made to my spec, $20.00 a set, = $400.00

Could you afford to sell them for $450.00 a set ???

I'll put them on Ebay before I'll sell them for that cheap.
Go buy Cast Iron Fabtech for $450.00, "oh wait there out of business"
NO.