Project eth (inv)

hi
i m in montreal canada
i want to invest 3500 dollar in ethereum
i want to make two rig and i start mining
just i need help
-1- i can start now mining eth or it s late
IF yes
which best gpu cheap and strong
i start with ETH or XMR
IF NO (late)
which best project i can invest my money
--2--
if i buy two server and make website to sell vps / domaine ..... i can make money
and thx ​