Yes, i have the HWH levelers and the spare tire on my 2020 Navion (2019 Chassis). It looks like some disassembly would be required to get the spare out though.
Also, the stabilizers are still installed although they are not likely to be used.
Do the other levelers require the spare tire to be removed.
2020 (2019 Sprinter Chassis) Navion24D