its good to hear that you will have your holiday soon, if you looking forward some drift spot, when you heading up tokyo area, you can try go to urayasu 浦安 area which near tokyo disneyland, every thrusday or friday you may able to find many drift 野郎, of cos they wont drift near disneyland area, they will meet in some convineient store, like 7-11, lawson near around, and will drive to some factory area....anyway nowadays police take drift very seroius, it may just hard to see, will be depends your luck, if you also interest top speed 最高速 , or you have mate around chiba area, you can go to AQUA line in chiba area, its actually a long fast express tunnel which connect from chiba kisaradu (木更津) to yokohama 横浜 kanagawa 神奈川県, this AQUA line is a good run, but each run will cost you 4000yen, so people will just do a U turn in parking area and do a few high speed ... since this express line very expensive, not much normal poeple will use, so friday night you might able to see many zeroyon ゼロヨン, few years ago wangan kousoku 湾岸高速 is the best place , but now a days too much accident, so you might hard to see on the kousoku 高速。。。。it might have more drifting scence around osaka.... regarding getting parts in upgarage...i bet it might be hard to get good parts around there, since i think many good stuff are already get by other poeple or something, and upgarage price is not a bargain anyway, the most place to get your bargain should be in yahoo auctions, goo parts, some internet online store, if you want to find some wecking yard in tokyo area, i can list you some or search for you, and now adays doing front cut place is very hard to find since govenment changing their rule every years....you may try osaka might have more wekcing place, i have heard TRIAL , they help customer do front cut half cut.....anyway good luck for your trip