HEY , I'M NEW TO THIS IS HAVE BEEN DOING MODEL'S FOR A LIL BIT NOW .. FOR THE MOST PART THEY ARE STOCK FROM BOX BUT I WANT TO MAKE MORE CUSTOM TOUCHES . WHERE DO YOU PICK UP SPARE MOTORS AND PART LIKE TURBOS AND INTERCOLERS ARE THEY ALL HAND MADE OR CAN I BUY PARTS I WORK WITH 1:25 1:24 SCALE ANY TIPS WOULD HELP THANK YOU