I have a tier 6, and with a melee trauma 6 amp i get about 83dps. That is just under an armatrix bp-70 L with a dante dps. Personally i think these should be valued much higher, closer to their blp and laser dps counterparts, but they aren't. I will buy your sword for tt+3k any day. The only reason it is so low is because everyone else is selling them for so low.
Another point, the tier increase rate on these increases agonizingly slow. I've only been tracking for a short while but it's been over 20 swords tt useage without a single 0.01 tier increase. That should add value too as it is difficult (more so?) to tier up.
With current price trends PC: 3k
Value VS other weapons trends PC: 30k