My runic alphabet is taken from Codex Runicus, a Skanian law book from about 1300AD and one of the few examples of runes written on paper.
The missing letters:
j and w are taken from the Older Futhark;
c, y and ng are from Anglo-Saxon Runes;
q is from the Runic Alphabet by Gabriele Campbell (lostfort.blogspot.com);
z from the common Germanic Runes.
V, x and å are created by me (x as a combination of k and s)