Need motor for SRT4

Hey guys, a friend of mine has a blown motor in his srt4. Piston rings are shot and it seems there may be some other problems. Does anyone know where there may be a performance shop for srt4 engine builds in the Yuma AZ area. He is willing to travel a little if need be to Pheonix or San Diego areas. Or if anyone has a good srt4 or pt cruiser turbo motor, anything would be great.