Schematic description of our 3D methodology using a 2-step process. First, we determine the morphological parameters by fitting a 2D Sérsic model for the flux profile Σ(r) on a [O II] image from MUSE. Then, we fit the MUSE [O II] data with 3D model with the Sérsic n fixed to 0.5, 1, 2 or 4 based on n_2d and priors on the half-light radius R_e and inclination i from the results of the 2D analysis. We run the MCMC algorithm in two steps, first with Cauchy sampling which reaches convergence more efficiently, then with EMCEE which better sample the posteriors.