Yes gstar is right. The memory dump is a crucial step, just in case the process goes wrong and it is better to advise users on 3.55 ofw to install 3.55 kmeaw first and make the dump instead of just skipping that step. About multiman and IPFs I think they will understand as it is clearly stated that you need to run multiman in order to make the dump and the toggleqa is a pkg so they should know how to install a pkg and where it is displayed afterwards if they ever played a psn game or installed multiman itself.
The button combo should definitely be there though, people who downgraded need to verify that the thing is on, so I would suggest to add that. A recommendation to check the md5 would be good as well and could save somebody from installing the wrong pup. Links to be coded too, cheers.