60 Gallon Tank Starting a planted tank for 8 Bettas

I am not new to fish keeping, Bettas tend to be my preference, but I am fairly new to doing planted tanks.... successfully.
My 13 yo son has a working sorority of 7 and 1 male king (not with the females yet).
I am aware of how Bettas are so there are other tanks to house the male if things go wrong.
We just got the cycle started on the 60 gallon and the ammonia is going down. He wants to get the plants established before the Bettas go in, which I agree with completely, but I am not sure as to what I can do.
The nitrates are up to 10ppm but ammonia is 2ppm (no nitrites). Can I add the plants with the ammonia where it is? If not until 0 then should I add a little to keep the cycle going while trying to get the plants established?
I am working with p. Java Fern, dwarf hair grass, creeping Jenny (?), And the ones in the photo. I have liquid fertilizer and I know I will nee root tabs. Some tips and direction towards success would be great.
Second photo is the 60 gl

 

You should be able to put the plants in without issue. They tend to eat up nitrate (and a tiny bit of ammonia) though so if you see nitrate levels dropping that could be why.

 

My concerns are ammonia burn

 

Low levels of ammonia will not harm most plants, but super high levels could result in burnt leaves or roots, or even dead plants.

 

So is 2-3 ppm low enough?

 

So is 2-3 ppm low enough?

It shouldn't bother them too much. I've had plants in up to 4ppm which is high and they did okay. I would do water changes to keep your ammonia and nitrite combined below 0.5 since you're still cycling. That would help.