More Secure Camper Shell Locks?

I have a camper on my 2015 DCSB (sadly not color matched, the camper is off a 2005, then 2008 Tacoma, so it is close in color) and I did not realize initially how common the keys are for it. My dad walked up to it and used the key from his ACLB's camper to open mine, then my buddy used his key from a camper no longer in existence to lock it again.

I've searched the 'net and asked a few dealers via email (I'm 80+ miles from the city) with no solid answer. Are there lock cylinders that have a more secure key than the J327s? I'm fine with changing the handles if needed as well.

 

I'd stop by a local locksmith to see if they can help. They might could swap the cylinder out for a new setup.

 

No local locksmith either per se. Was hoping there was an option I could order.