Choose the method compatible with your wii. Softmods with HOMEBREW CHANNEL installed
3.0-4.2u/e/j/k wiis- BannerBomb
4.3-LetterBomb- No Game Disc Required
4.3u/e/j/k Disc Exploits
Other desperate options
you have a 4.3E so you can't do banner bomb that's for 3.0 - 4.2u,e,j,k
so next option
4.3 letter bomb. as i told you LetterBomb is compatible with 4.3U 4.3E 4.3J 4.3K . no special magic involved i just went there and read it.
so sounds like letter bomb is your option unless you want to skip down to disc exploits which as you say would mean a trip to the video store. so why not give letter bomb a try.