Punctured Mickey Thompson ET Front Drag Racing Tires 25x4.5-15

I've been running these tires for a couple of years, and now one of them has a puncture.

Brought it to the tire shop for repairs, but the tech guy said he can't repair it because it has a liner inside.

Now, when I called M/T to seek tech support for a recommended tube, they said they don't recommend that. This is kind of frustrating.

Anyone running tubes in these tires? and which tube are you running?