Yes, VescExpress would be nice to connect over BT. If space is a concern it can also be kept external, this also allows to position it to a location where WiFi and BT get good reception. I made one of these:
Works with FloatControl, Floaty, VescTool on iPhone. VESCTool on PC with WiFi bridge over TCP works somewhat (not reliable) but that could be due to bad wireless reception in my basement.