Hey guys, I'm waaaaay overdue for building my young Peach Throat an adult size tank, but I'm finally about ready to start. Hope to have "her" moved in within the next two months. I've been reading tons of the enclosure building posts here, on ssnakess, on varanustalk, and on reptic zone, but I still have some concerns... Any help would be appreciated. 1.) Most of the plywood I see for sale is made of pine, which if I understand correctly is a big no-no for health reasons. Is it safe to use for the inner walls of the tank after 3+ coats of polyurethane? Or do I need to go for some sort of (expensive, *sigh*) hardwood plywood? 2.) I'm considering going all out and building a "rock" waterfall in the back corner to trickle/splash down into the water pool. (Planning on using a sink for the pool.) My intention was to build it with mortar-covered foam blocks on a wooden frame. However, I don't know that the mortar would really be okay on its own. Do you think it would be good to cover that in polyurethane as well, to protect from the erosion/leak of the running water? Or do you know a better way to do this? 3.) I am planning to make a basking ledge on the back wall and hanging some floodlamps above it for the heat. For a full grown Peachie, a.) what wattage of bulbs would you suggest (45? 75? somewhere in between?) and how many bulbs? b.) Does the length of the hotspot need to be the monitor's full length, or only the STV length? 4.) I plan to use 1/2" or 3/4" plywood for the inner walls, but can I get away with using 1/4" for outside the frame? 5.) What insulation rating do you guys recommend? R-15? R-30? Something else? Sorry for all the questions, but I really want to make sure I do this right. I am on a limited budget, but I believe I can sink close to $750.00 into this (hopefully!) Thanks in advance for any help you can offer!