I would make sure everything you buy comes with the tag CB-- that means it's captive breed. Stay away from even "farm" raised. You'll find you pay more fir CB animals. But these are more freindly and healthy animals.
second your conversion. I did a 10 gal conversion today that cost 4$ for the glass the screen and frame was 8, but you gotta figure I paid for laybor. I found the screen to be too big leingth and width. I just pryed it in there. But that made the door over lap a little. So if you do your own conversion. It's better to tell them 1/8 less than you need, as silicone will fill the gaps. Pictures of build will be added to my list of being green and saving $ by Saturday if you wana check it out