I would save your forum gold for level 55 well gear, and start welling at 64. The reason people do that is because 64 is the lowest level that level 55 items can drop as secondary.
For example, the other day my weller hit 64 so I began welling everything I could find. I threw in an Earth III and the Rare Earth III which dropped was crap but I got an Ice XIV as a secondary drop so I threw that baby in there and even though the stats were crappy I sold it for 50 easily as a mutable

So basically once you hit 64 you have a much better chance of finding some items which will sell easy.
And about that heal charm... Personally I'd say it's probabaly not good enough

to be honest. LS is expensive.