Heater box rivets

[OttawaCharger]

Ok, so I've disassembled the heater box as far as I can without grinding off any rivets.  I haven't taken the rivets off because I want to make sure that I can replace them.  I'm pretty sure they're out there as I've seen some pretty nicely restored heater boxes on this site.  Here is a picture of what I'm talking about:

[Paul 500]

When i done my heater i left the brackets on & just masked it up when i painted it. Too much effort grinding out rivets & the boxes can crack quite ease.

[OttawaCharger]

Thanks Paul,
I really need to replace all the seals in my heater box which means at least three of these rivets must come out.   They're pretty well hidden on top though so I'll just drill them.  I took a look at smsmopar.com and their $500 restorations use plain blind rivets so there is no reason that mine can't. 

[gasoline_24]

Did you ever find the right ones?

[OttawaCharger]

Not in quantities of less than a few thousand. 
I ended up just cleaning them up with a dremel tool and painting them on the box.  Not quite the results I was looking for but at least it stopped the rust and you'd have to be looking real hard to see them.

[Shakey]

I did the same, just tape them up when I painted the box black and then covered the black when I painted them grey.