I got my A-855 home last week. Will do the 5 spd swap over the winter.
I support Jamie & I fully expected the long wait for this type of venture.

Rather then sit around and complain, I prepared for the anticipated long 5 year back order list, by installing a 2.94 ratio rear gear, matched to a NOS ultra wide ratio Mopar 833 4 speed with all NOS gears & cluster etc. Jamie also hooked me up with parts. My 383 cuda still accelerates good and is very driver friendly because this combo has very low 3.09 1st gear & slightly lower 2nd, 3rd normal & 4th is normal 1:1 direct. So I therefore have a poor-mans substitute for O.D., which works great at city or Hwy speeds. This wide ratio 4 spd teamed up with 8.75 rear pkg will be offered up for sale late winter or early next spring if anyone is interested or would like more information. ps...I also have another complete set of good used ultra wide ratio 4 spd internals if anyone is interested in building/ converting their own smile
thanks DOUG.