I agree in that we need to see photos to provide more info. Value is driven by numerous factors, such as condition of the model, does it have original stand, original props, how well the decals were applied, the shelf appeal of the model etc. The value can vary by a wide margin. For example there is a 1/50 KLM Connie on ebay right now with no props, no stand and it is in need of full restoration. With no takers so far at 350 Euros. But the same model in mint beautiful original shape with original stand and props could achieve $1500 -$2000 for the right buyer. May I suggest purchasing my value guide for display models as it is chock-a-block loaded with info on valuing professional aircraft display models:
https://www.henrytenby.com/aircraft-display-model-collector-investor-appraisal-guide-first-edition/