Nissan sentra boxtype

Mga sir, input naman po about sa model na to; Nissan sentra boxtype

=Ok po ba yung ganitong model ng sentra? like nung Engine,underchassiss,aircon,etc.?
=2 klase po ba engine nun? anu po mas Ok, yung sampaloc engine or yung 1 engine?
=Hindi po ba mahirap makahanap ng parts nito? both for the engine & body?

Thanks po in advance.:bowako: