Green Beret Vet has a dream to finish

I am setting up this 'go fund me' to help my brother Randy.  He is a former Green Beret who served our country in the 1970s.  He has developed a life threatening illness that has zapped his energy.

In Randy's words:
I have advanced Pulmonary Arterial Hypertension (PAH).
It is non-curable but can be somewhat controlled and eventually fatal, but then so is life. I am told that it is started with Obstructive Sleep Apnea.
There are a lot of details about symptoms and discovery that I will not bore you with. Suffice it to say that It has been a long time getting here until the last year to 6 months then it attacked with a vengeance.
I am on O^2 (oxygen therapy) 24/7/365.

Randy's sister, Ev:
Randy and his wife Louise have been building their dream house and have now run out of the energy to continue.  His brothers have been helping, but there is still a lot of work to do.
Due to medical bills finances have gotten so tight they no longer have the funds to finish their dream.
Randy is a proud Green Beret, but I would like to see him finish his dream with our help.  I would be very grateful for any help to see him accomplish his dream.