the one that is skinned took a full summester at college but i wanted it to take that long as i was doing it in a wood shop. the one for my 55 gallon took about 4 hours. and is seems like its more stable then the one i did in the wood shop. the only power tools i have are a miter saw i got a home depot (cheapest one they had at the time) and a cordless drill, though i think its dying on me.
edit: i think the hardest part was making sure i was being consitant in how i was making my cuts.