FWIW Pedersoli list some of their 86/71 range as being available in 444. They list a few different options.

https://www.davide-pedersoli.com/sc...model-86-71-lever-action-boarbuster.html

The other point is that you’ll likely be able to exceed the LOA as those actions generally can cycle a longer cartridge, up to 2.80” in length. I’d imagine to utilise the longer LOA you’d need to use a bore riding cast design or open up the throat.