Notes. The model parameters include the cosmological distances, the SPEMD and the COMPOSITE mass distribution, the PIEMD profile (parameterising the mass sheet) and the dynamical variables, consisting of models with a constant (β_z(r) = const.) and spatially varying (log₁₀ (β_z(r)) = log₁₀ α + β ×  log₁₀ (r)) anisotropy profile. The mock IFU dataset is based on the best-fitting COMPOSITE lensing-only model with a source resolution of 64 × 64 pixels and arbitrary values for the dynamical parameters. The mock cosmological distances are based on the best-fitting lensing-only model for D_Δt, int and assuming H₀ = 82.5 km s⁻¹ Mpc⁻¹, Ω_m = 0.27, Ω_Λ = 0.73, z_d = 0.295 and z_s = 0.654 for determining D_d, int. The stellar M/L is the constant multiplied to the observed light intensity distribution in the mock imaging data to obtain the dimensionless SMD, κ. For a real system with real observations, this value can then be converted to physical units such as M_⊙ and L_⊙.