1987 Plymouth Reliant LE Sedan 4-Door 2.2L

1987 plymouth reliant purchased from original owners estate immaculate white body and immaculate burgundy interior 50,703 original miles car has been garaged its entire life not a speck of rust anywhere on the car cold ac everything in car works as it should including the original radio car has good compression in all 4 cylinders and runs and idles fine car ran well and was in process of acquiring a title when a knock in the engine developed but with the condition of car and low original mileage not really certain what it is.Car has no title as it was lost by original owners estate and will be sold with a bill of sale only car is sold in as is condition. I will include in the sale the documentation I have already received in the process of acquiring the title as most of that work has already done by me. A brand new gas tank,fuel pump was just installed and fresh gas added.