"4 6 3 8 A B K 2 4 A L G M O R 3 Y X 24 89 R P S T O V A L"
Well, that's pretty close. But see that 'G' thingy you wrote?
That's not a 'G' in Liber AL. Look at it again. It's an uvelor (spelling?) implosive phonetic symbol. Look in that International Phonetic Dictionary published in 1800 something or other.
Oh, and the X isn't a capital letter. It's a little x. This is actually a phonetic symbol too.
It stands for the letter x in Greek - Chi, sounds like Key and looks like an x.
Any way. Good luck in solving it. Hope this helps you along the way.