I dunno I am not an expert in the material trader but isn't tellurium a high grade gear? I am not sure I have enough other stuff to get the high requirements needed for the larger SCO drives.Material Trader probably would have worked faster in the short term.
to be fair it's a want not a need. I already got the CG reward and I had enough stuff to get a second class 5 so that is both my exploration pantom and bubble runner Asp sorted along with my trade T9. I would like one for my mining T10 however