In addressing the intricate material behavior of biobased thermosets over a wide range of applications, sophisticated constitutive models with numerous parameters become necessary. Therefore, this contribution focuses on the multistage calibration of a viscoelastic-viscoplastic (VEVP) model for the biobased epoxy RE/DA-LIM derived from resorcinol diglycidyl ether (RE) and the hardener diamine-limonene (DA-LIM) \cite{1}. Our approach involves a sequential procedure to independently calibrate parameters associated with the elastic, viscoelastic, and viscoplastic aspects of the VEVP model \cite{2}, which integrates a hyperelastic bi-logarithmic elastic potential with quadratic dissipation in Maxwell branches and a viscoplastic formulation able to account for compression-tension flow asymmetry as well as isotropic and kinematic hardening. With a total of 50 parameters for the entire model, we first calibrate those related to the viscoelastic regime by fitting DMTA-TTS derived storage and loss modulus data. Subsequently, an inverse parameter identification is performed using global optimization techniques to determine the parameters associated with the viscoplastic and the elastic domain, respectively. This comprehensive approach, considering data from various experimental setups simultaneously, represents a promising step in modeling the complex material behavior of biobased thermosets.