I have done this before with just a part but it is clearly harder with a whole model. On top of that I am using a cone mesh I imported from Blender so I cannot create a union.
You can do so by moving it's primary part. Make an invisible cube surrounding the model and make that it's primary part. You'd do that by going into the models properties, clicking primaryPart and then clicking on the invisible brick.
Once you do that, you'd say:
game.Workspace.ModelName:SetPrimaryPartCFrame(Cframe.New(0,0,0))
This code will mode the model to the middle of the baseplate. If you want to move it to a part's Cframe you can also do:
game.Workspace.ModelName:SetPrimaryPartCFrame(game.Workspace.Part.CFrame))