For #4 I thought the L1011-500 had previously been confirmed upthread. Standard L1011 changes things.
SEL-LAX KE D10
LAX-GUA PA 747 (seems like way too much aircraft for the market but what the heck? I think that when UA acquired PA's Latin America network a few years later the deal included LAX-GUA/SAL)
GUA-GYE EA L10