I know this may be a guide but you do know that this is still necro posting right?

please becareful and look at the date next time.

also i don't think your way is exactly the easiest nor would i ever want to waste fire swords a rank 36 magic (4th highest free magic you can get in the game atm)on something like getting magic powder. also in that list you mentioned, firesword is the ONLY magic based item. everything else is pure iron (that is why it is unlikely to succeed because pure iron cannot become magic... so if you plan to necro post atleast add proper information.