Chakotay
If you don't have any 140, 150 or 160 gsm paper, perhaps you could "make" some, glueing two sheets together, and letting them dry with some plan weight on, like a thick book.
Anyway, the best/harshest critic you'll ever have is yourself. If you're not happy, then that's it... but I think that, for an 80 gsm, it's good enough!