Looking for a compatible module in replacement of a Qcomm X7 chip, siera wireless 7544,

The device takes a b-slot and apart from that it has a sim card tray on its otherboard, I am not too aware of the what else requirements it has, besides being compatible with the dw5811 or the parts in the subject line, which seems to support data only connections… I was hoping to embed a fully capable cellular modem into a dell 5290 2 in 1

After some snooping, is this asking the impossible?