Good choices on scanners on here. I run a Uniden Bearcat 996p2. You have to purchase the DMR, NXDN, etc options but it comes with P25. You have mostly P25 down there so you should be good. I live in the hole here in Thorndike (northeast of you) and can hear Augusta PD and FD along with Waterville PD all on their digital systems very well. You may have an issue with Kennebec Sheriff. For some reason it seems like no matter what P25 receiving device I have tried, their digital has an issue coming through clear. Sometimes it works for a few transmissions, other times it is broken clicks and garbled mess. I have even gone mobile and it is very broken. Not sure what is going on there. For digital stuff, I would advise staying focused on P25 and DMR. They seem to be the popular ones