FINAL FOUR

EAST/WEST Semi-Final:
A: Using A=1, B=2, etc, find the total letter value of the 5-letter name of the river that flows through two adjacent counties, whose names are the first and last names of the film character played by the actor who, in a different film from the same decade, played a character whose first name is  [also that of a county in GA, next to a 4-letter county beginning with the same letter, and also a county in SD next to a 7-letter county beginning with the first letter of the last name of the author of this puzzle]*, and whose surname is [ ]* (same as brackets above, except substitute TX for GA and IL for SD)
Z: $A bonus, offered to B by the owner of the C's to develop his signature D...divided by E digits -
and not the ones represented by F's [who had no D, and who won G championships as a coach, the second-most number of championships in the history of his pro sport for a coach] on his H's (a la the evil clan among testudines); but by B's (including the sign of approval of a TV character, whose signature line is an elongated C) on his I's (the CEO of a NYSE-traded company which has an anagram that might describe how his employees see him, and another anagram that might describe the company's end product use) - associated with J, who has a D and does the same thing as B, whose number, K, is associated with a movie whose star had a D in the movie, and whose signature line gives the house a 5.26% advantage and whose 2005 team, L, is also the name of a coast guard vessel represented by what might be quitting time for a dyslexic...plus G multiplied by M, the number of pro championships earned as a coach by N (who had no D), who was a rival of F in the same sport, where a N is delivered by reorienting and projecting the B...plus O, the atomic number of the NYSE trading symbol of I's company.
In other words, (A/E) + (GxM) + O
[Note that B's D is the same variety as that of a president born in a year ending in K, and no president since has had a D of any description.]

NORTH/SOUTH Semi-Final:
A: Sum of the nine digits of an integer which can be expressed as the product of three prime numbers of three digits or greater, two of which begin with a digit not represented in the nine-digit number and none of which contain the only digit that appears twice in the nine-digit number, and which can also be expressed, after a display of calculated manipulation, of the common bond between seven individuals whose two-word names have each been anagrammed into two other words, all rearranged and listed below.

YODELED

BEER

UNLAYS

TUSKS

CONVERT

BRINER

FANS

GRADIENT

SHIVER

CAPLET

CAMELOT

ANYONE

SOLDIERS

ADORN

Z: You and I are playing a game of Scrabble. You hold BIKOWY plus a blank and score a whopping 96 points on the first play of the game. I, holding BEEGGMN, am happy you played an I, and I get a bingo for 65. You stare at your second rack (DEIIOXZ). “How can anyone make a word out of these lousy letters?” you wonder, and exchange all of them. My second rack is EEFJLRU. I manage to clean up my rack nicely, using six of my letters, but score a mere 17 points and open up a risky hot spot. Meanwhile, your next rack (CLMNRTU) seems to be even worse than the one you just threw in, but you don’t want to trade twice in a row lest you fall too far behind. How many points can you score for your best play?