Regarding your resistance to using the arch iso on removable media: I personally don't understand how anyone runs any distro without having rescue media at hand. Ask someone you know to pick you up a cheap usb stick whenever they're passing the shop, since you're too lazy to go there yourself.
Finally, why on earth would you need "all my Arch apps" on the Live CD? All you need it for is to fix your boot config.
]]>PS: I am not trolling. I feel you should either learn to use a live cd + chroot to fix such problems. If you don't like that, there is supergrubdisk. In any case, you shouldn't be needing either too often unless you like to break your system on a regular basis.
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