It is a buyers market with consideration of several factors like coin condition and the percent of misalignment... https://coinauctionshelp.com/misaligned-die-strike-mint-error/
if you mean a large date "b"road struck as i'm guessing since you said misaligned die at ms 66 it depends on the amount of broadstrike. If you mean ms-66 1982 large date Bronze which I call copper it looks like it's going for 20-50 bucks on ebay. ?
From your other threads, you've submitted to ANACS so you should have a login there. Log in and click Population. NGC and PCGS have their own census options. ANACS designates "off-center" but without images we don't know how yours is designated or by whom. NGC has 732 in MS66 but they don't split out any strike errors. PCGS is currently offline.
Doesn't exist. We don't even know the breakdown between the copper (3.11g) and copper-plated zinc (2.5g) coins - it's never been published.