[LightDestory]

Dear bro @LightDestory

Amazon is not available in my region so i can't avail any service from them. i only have a link which suggested by a friend vasti.ai/
but the services is more expensive for my project. estimated cost goes to 100 to 150$. so i need any cheap alternate. or any person who has self managed gpu server with RTX2080Ti  11Gb GPU minimum, High End fast performance.

Where are you from? 
If I am not wrong Amazon has an almost global coverage.

Regarding your requests... I think your budget is too low to be able to get a RTX2080Ti 11GB edition working for you. I mean that card is a beast on both performance and consumes, it take like 260W. I thonk company will start the pricing at 299$ minimum for such high tier hardware. Moreover I don't think you will find consumers cards, they will sell you gpu servers running Quadro cards!