Birthday greeting translation plz

Can someone help me translate this:

Uncle Wladyslaw, I learn that this is the year of your 80th birthday. I want you to know that even though Ciecina and Texas are far apart I will be with you and family as you celebrate.

You must go to the backyard tonight, look up at the stars, enjoy some good vodka and listen carefully for you will hear me singing "Sto lat, sto lat, sto lat, sto lat niechaj zyje nam"

I stand and toast you as it brings me great honor that you are my uncle.

With love,

Grzegorz

Wujku Władysławie,

Dowiedziałem się, że w tym roku kończysz 80 lat. Chciałbym, żebyś wiedział, że mimo że Ciecina i Texas są tak daleko od siebie, będę z tobą i rodziną, gdy będziecie świętować. Musisz tylko wyjść na podwórko, spojrzeć w gwiazdy, napić się dobrej wódki i wsłuchać się dokładnie, a usłyszysz jak śpiewam "sto lat, sto lat, sto lat, sto lat, niechaj żyje nam".
Wznoszę za Ciebie toast, gdyż to wielki zaszczyt, że jesteś moim wujem.

Kochający,
Grzegorz

I find it most gratifying that someone as yourself would take the time and make the effort to help a stranger. I am trying to learn the Polish language and do send some brief notes to Poland. But in this case, the age of the receipent is such that i need help to ensure that i don't say something wrong or confusing.

I really do appreciate your willingness to help out.

Thanks you,

Grzegorz

Thats a very nice birthday greeting! I'm sure your uncle will be very happy! Good luck!