Guild Wars 2

I recently purchased the deluxe edition of guild wars 2 and was given a warning on not to delete my first character, however I have been told you can change your home world for free if you delete your characters and since I haven’t progressed far I wish to do so, I don’t want to lose the bonuses that come with the deluxe edition though. Is it possible to put the armour, mithril box and rytlock in the bank and then keep them if you delete the character? Or is there no way around it? Sorry if this is badly worded I find it confusing.
Edit:For wvw purposes with friends

Your bank and anything in it will follow you to your new server. As well as your wallet. Remember, though, anything soul-bound will be unusable by your new characters. You can make things account-bound though by transmuting to a white item.

http://wiki.guildwars2.com/wiki/World#Transferring

Inculpatus cedo.9234:

Your bank and anything in it will follow you to your new server. As well as your wallet. Remember, though, anything soul-bound will be unusable by your new characters. You can make things account-bound though by transmuting to a white item.

http://wiki.guildwars2.com/wiki/World#Transferring

So even if you delete all your characters your bank stays intact? And all of the bonuses are account bound fortunately.