aaronnorth
www.ukaps.org
shrimp & snails produce little ammonia so you should be ok, you would be better going for a 300l/ 80g to be on the safe side, lighter stocking is better for planted tanks
What shrimp and snails am i thinking then?
If you go through with this, it'd be awesome if you started a journal here. Your plan sounds perfectly doable, yet it's also very unusual and exciting. I for one would be really interested to see how it goes.