Klepto get red AW IMR's all across the board they are good and reliable. For cleaning the ultrasound cleaner is the best but you don't need it for just one JustGG. A mixture of hot water, dishwashing liquid and some white vinegar and a toothbrush does the trick. You'll need obviously a supply of silica wick 2mm & 3mm and resistance and non resistance wire. Also get some Vaseline for the o-rings
Wait.. I have read that petroleum jelly "Vaseline" can be bad for O-rings, as it can break them down and deteriorate them. That is why people don't use Vaseline on their Rubiks Cubes or flashlights.