Northren areas are recommended to stay for short trips like a week or two only, because you will get bore in totally different area for couple of months.
For your particular purpose you need to stay in Galyaat like Murree, Nathyagali etc or in Neelum valley which will be closest to your home town. I can give you contacts in these area or better to come on weekend trip to check these possabilities and then decise.
You may please contact me 0300-8565009.
Regards
Hassan