Reuniting Vietnam War Vets at the Vietnam Memorial

After 50 plus years, I was able to reunite my father with one of his close buddies that he fought alongside in the Vietnam War during the time period 1965 - 1966 in the First Infantry Division which is known as the Big Red One unit in the U.S. Army. These Vets were located 15 miles north of Saigon which was their home base near the village of Bien Hoa.
I have also located two more close buddies that were also in my father's outfit.  I am continuing to search for additional Vets that they fought alongside with as well.  
This has been a very emotional and longtime coming reunion for these Vets.  Several of their close buddies have already passed away so reuniting these Vets and others that I am continuing to search for is of upmost importance.  I plan on reuniting all four of these Vets together (along with additional Vets that I am currently searching for) and my goal is to have these Vets visit the Vietnam Memorial Wall located in Washington, D.C. in the summer of 2020.   
None of these Vets have ever visited the Vietnam Wall in Washington, D.C. so what an emotional and also healing experience this will be for these Vets who have so bravely fought for our Country.
It's the least I can do for our Vets.
I am very grateful for any help that I can receive in order to reunite these Vets.

The money being raised will be used for round-trip airfare, multiple-night hotel stay, meals and transportation to and from Memorials for the Vets and their spouse or another family member who can assist them on their trip.

Thank You