Strings? For a person you don't know, you have to admit that seems pretty dubious to anyone outside of whatever circle you have.
HUcast Death: It's probably best to level up and then just hunt your own. Look for a party of tower-hunters; Skyly tower is a popular choice for many people, just so long as you have a force (or perhaps RAmarl/HUnewearl) and a ranger (with an FS preferrably) on the team to make things go smoother. This is because, well, there are a lot of mad SJS hunters out there.

I'm personally glad I have little to no interest in SJS, so usually I call Soul Banish or some other Skyly-tower rare. In Skyly tower and seabed, Soul Banish drops from Delbiter, so PW3 would also be a possibility, if your party can handle it (you're gonna need a good FO and RA for that one).
Sorry to disappoint you, but Soul Banish is rarely traded away except by people without appropriate characters (very few), or mad SJS hunters who've found just about everything else in Skyly tower at least once (one of them traded me my MKB

). Soul Banish is a VERY useful weapon and incredibly popular for melee FOmars and FOmarls, so you'll find tradable ones in short supply, I'm afraid. It's probably a lot less hassle just to hunt one for yourself... but if you must trade, then you need Ultimate level rares, and good ones at that (you won't be trading Red Sabers for em, either, unless you find one crazy SB owner

). This is why I think it's better to hunt your own; if you find something that's worthy of a Soul Banish trade, chances are you'll have trouble letting go of it. :ermm: