A competent plumber/contractor would have no problem cutting a small new hole in the Taj Mahal counters with the right tool.

I've never seen a kitchen faucet with integrated instant-hot in the northeast, CA or FL. I have also never seen anyone else mention that kitchen faucet option here on the forums or the previous GW/THS forums.

From Copilot Ai:

If you want a single faucet that includes instant hot water

This is where things get tricky: there is no mainstream kitchen faucet that integrates a true near‑boiling hot‑water dispenser into the main faucet body. The heating tank requires a dedicated safety valve and spring‑loaded handle, which is why manufacturers keep it separate.

The closest alternatives are:

• Grohe Blue / Grohe Red systems (European) — combined faucets with integrated boiling or filtered water.
• Insinkerator HC series — still a separate faucet, but provides both hot and cold filtered water.

These are specialty systems and not part of standard U.S. faucet lines.

Grohe Red Duo (not sold in the US). Amazon UK

I have the Insinkerator - includes hot and cold filtered water (as referenced above). I love it.

You need an additional dedicated electrical line for any of the instant hot/cold suppliers. You will have a tripped breaker if you try to put that on the small appliance circuit and then plug in a toaster oven.