According to Sith Specter, the Tatooine Temple would need parts re-modelled to not be as jagged or really too low-poly, the walkmeshes would need to be re-done from scratch, and then at point you'd only have to do what's left for a custom level (lightmapping, compiling, basic files, .etc). That being said, with the lack of real content, he's opted that it would be too much work for too little gain and it'd just feel forced if we included it in Sleheyron.
Surprisingly enough, I could literally implement the banter spots, Genoharadan Messenger, Party Member Messengers, Xor, and Ziagrom all within 20 minutes as soon as I know where we want these to be. We know exactly where we want Calo and Bandon to show up, but we aren't there yet in the actual content. I've also made as-yet-untested changes to the Star Maps and Galaxy Map so that we should be good to go on that, but that will only be figured out as we test the mod, which is a long way off.
While I'm glad people have such confidence in me, all that knowledge is rather useless if you don't use it. Like SS said, it's a marathon, not a sprint. Right now I'm in a low point modding-wise, but I know I'll crawl out of it and work like lightning. This Summer term at College ends in mid-August and then the next term doesn't start until the end of September, so I will have a good five or six weeks of no school to play with. Not making any promises, but we'll see how it goes.