Setup of the DALI model for LkCa 15, top-left: normalized surface density of the dust (orange) and gas (blue) as function of radius, bottom-left: gas-to-dust ratio as function of radius in the fiducial model, this is a direct consequence of the used gas and dust surface density profiles shown in the top left panel, top-right: radial profile of the continuum observations (black) and the model (orange) normalized to 1, bottom-right: observed SED in black with the modeled continuum fluxes in orange. Dashed lines show the setup for the same model with cleared cavity, discussed in Appendix B.