JSS22

I accidentally ran my 110v Bopsch Bulldog Xtreme rotary drill on 220v and it is fried now, runs slow and shoots sparks out, smells burned, etc. I am wanting to repair it and I am not sure which parts I will need. I am thinking either the armature or the field (parts 2 and 3 on the attached link). I am wondering if others know what I will need or what tests I have to run to find out which parts burned out. Thanks! https://www.boschtoolsservice.com/Order/IPL/IPLDetails.aspx?tn=0611255539&mn=11255VSR&RelatedTools=&init=1