Hi, I'm going to buy a 69 Sambar,  I know 50 MPH is it for speed but how reliable is the engine? I'm looking at 1300 miles driving car home, using mostly surface streets .Appx 500 miles a day
 
	Is  overheating an issue ? anything that is the "weak link"  that I should prepare for ?  
 
	Any tips you guys have would be appreciated.