A member of my guild made me aware of an ingenious guide towards getting the most experience out of the first levels of the Death Knight written by a B Young. Resultingly I've started farming materials to get these quests done. Please notice that I am planning on getting the double of the items. The following numbers are how the farming's going right now:

Reputation through cloth
Yields 88 250 experience
600/300 Runecloth
309/300 Mageweave Cloth
300/300 Silk Cloth
303/300 Wool Cloth

Blasted Lands' "potions"
Yields 50 600 experience
0/6 Blasted Boar Lung
12/6 Scorpok Pincer
2/11 Basilisk Brain
0/14 Vulture Gizzard
8/5 Snickerfang Jowl
1/1 Imperfect Draenethyst Fragment
0/1 Flawless Draenethyst Fragment

Reputation for Argent Dawn (Requires Friendly faction)
Yields 53 750 experience
60/30 Core of Elements
60/30 Crypt Fiend parts
60/30 Bone Fragments
60/30 Savage Frond
60/30 Dark Iron Scraps
0/2 Thorium Bars
0/8 Golden Rod
0/8 Hi-Explosive Bombs
0/8 Unstable Triggers