Do NOT go to Tanners, unless you have money to burn! I can rarely get out of there without buying a used gun. Good selection and always priced to move. Their new gun inventory is good as well.
Local to K of P, is Kings Shooter's Supply, especially for reloading supplies or cast bullets (which is how Roger got his start. good guy to deal with and built his business from the ground up. Handles NFA items as well.
think about kids, and schools, before planting roots. Methacton isn't what it used to be.
Moving West of K of P, real estate would be less expensive, but you likely have to deal with the commute and the dreaded 422. Maybe you can flex your hours at work a bit.
Lower Providence Rod & Gun Club (LPRGC) is a very good club, offering indoor/outdoor archery ranges, and an outdoor archery course. 2 indoor pistol ranges, outdoor pistol and rifle ranges (100 yard max if I recall). Trap every Friday, trap clinics on Wednesday. Pistol club, archery club, trap club. Key card entry to the grounds. LPRGC is like marriage and any other institution, you get out of it what you put into it. You will not find a better club, smack dab in the middle of suburbia. it's 10 minutes from K of P.
I've lived in Delaware, Chester, and Montgomery counties. I prefer Chester and if you could get into the West Goshen/East Goshen or surrounding areas, you're 10 minutes from Exton, 10 minutes from a train to Philly, 20 minutes to Delaware (tax free liquor and shopping), 15 minutes from K of P, except during rush hour of course.