lol ya.. same situation I just got a 60 gallon and waiting to move in to my place I'm already worried about space. No ponds for me for a while at least.
im soo mad. i just measured the space i want for my future bullhead. i think the pond was a 6 by 6. and only a 4 by 4 fits and my only other option is to leave it under my deck where little kids would go swimming w/ my catfish and the winter he would be left out there and a heater is too much $$$ for electric bills. my idea is gonna wait a while, like when i get my own place
i just built a pond out of the exact pool you got in your first post and it works great i will get some pics for you because the way i got it you can't even tell it's a kiddie pool except for the nice blue bottom and plus i got the pool half price so all i have in my setup is $8.05