Sounds like you know what the situation is.

Just need to decide on which way you want to go.

You could always sell the current HS rockers to offset some of the cost of the new ones.

I haven’t tried it myself, but supposedly the std HS rockers fit the Stealth heads okay, however the RPM heads exhibit the same kind of fitment with them as the TF’s.

I haven’t checked with the speedmaster or sidewinder heads either....... someone here might know though.