Yep, never stop learning - and be open to being wrong. lol. Wish I had learned that 20 years ago.
Might be a way to make it work, you could run similar numbers as my Ice/Ice - which is the only experience I have with ice on either side. The main concern would be losing the - recharge and slow from Frost and the KD from ice patch. But you do gain a magnitude of damage higher from Fire and still have slows and - recharge in Chilling Embrace.
I will take a look at it soon, if you wanted to get a head start - take Absolute Infinitum build save it and a copy and on one save it as fire melee and duplicate the slotting from the ice melee and you should be golden. Fire Sword, Combustion, Greater Fire Sword, Fire Sword Circle, buildup and incierate are the key powers to take.
Thanks for following also!