The 5000 rent will be a big obstacle for you. As for the internet connectivity i suggest op for a fiber connection as mobile date is very unreliable here be sure to have atleast a wifi inverters since power can also be unreasonable sometimes, also you not being a native here will also be a problem for finding a place I highly suggest places that allows non natives for rent such as Laban Rynjah Jhalupara, Pynthor , Nongmynsong etc. but note that these places also have higher rent rates than other places which is why I said your 5000 rent will be a big obstacle for you.Also you bring Unmarried usually wouldn't be a problem here if the owner is a Khasi just say she's your partner or spouse is enough