These figures are already generating quite the buzz and early pre-orders are already being filled.  They are not going to be offered at Toys R Us as most NECA toys are so your best bet is comic or specialty shops.  There are also many online retailers still taking pre-orders.  This is a very limited run (3000), so pre-order now as there will be allocations.  

NECA’s retro clothed action figure line now includes all eight main characters from The Hateful Eight! A limited edition release, only 3,000 of each action figure will be made available globally! Each fully articulated figure stands 8-inches tall and is dressed in intricately tailored fabric clothing, similar to the iconic toy lines of the 1970s. All feature authorized likenesses, and come with character-specific accessories from the movie, like pistols, rifles, shackles, gun belts, holsters, and more. All packaged in window box packaging.

This set contains 8 individually packaged action figures (subject to change):
1x Major Marquis Warren (The Bounty Hunter) – Samuel L. Jackson
1x General Sandy Smithers (The Confederate) – Bruce Dern
1x Joe Gage (The Cow Puncher) – Michael Madsen
1x Sheriff Chris Mannix (The Sheriff) – Walton Goggins
1x John Ruth (The Hangman) – Kurt Russell
1x Oswaldo Mobray (The Little Man) – Tim Roth
1x Bob (The Mexican) – Demian Bichir
1x Daisy Domergue (The Prisoner) – Jennifer Jason Leigh