You'll need the Tamiya 8rad bud, the TigerII is the Nichimo variant. Go on studioscalemoderlers and take a look at the kit scans on there, IDing parts is a pretty easy task, its just a case of taking your time and memorising, as you go, and the more you do it, it becomes second nature, and all of a sudden, your head will be full of donors you will recall, its just time, ANYBODY can ID parts, its not a hard task, just tedious, but very rewarding too.
Im taking a break from al things studio scale for a while now, but rest assured, when i get this bird back off loan, it will get finished. Any questions on parts, for sure ask, there are guys on here that will share,there are guys who feel its there god given right to ask for all the info without lifting a finger and, obviously you do get the odd nut job that needs to get out more that feel kit ID's need to be taken to the grave, but, thats life, best thing to do is don't expect a shopping list and have a go at it, its fun lol.
lee