if you don't want to read all the text; no, this trade isn't really fair to you.i personally went by the C$ (a CS currency bought with legitimate money) worth to figure this out!
though questions like this should be directed to
this thread in the future or you can send in a
help ticket! <32012 rare: 12-16 C$
2015 uncommon: [3 C$]
2017 uncommons: 1.5 C$ each [6 C$]
for future trades, you can reference these threads!:
how much is this worth in C$? and
understanding rarity