Have a model transparent for one player only?

I want to have it when some player clicks buy on a SurfaceGui. When the player clicks it, if they have enough coins to buy it then the Model becomes Transparent and CanCollide becomes false, but only for that one player. This is what I have so far, but I don't know how to do the transparent and the canCollide thing:

script.Parent.MouseButton1Down:Connect(function(plr)
	local coins = plr.leaderstats.Coins
	local price = script.Parent.Parent.Parent.Price
	if coins.Value >= price.Value then
		coins.Value = coins.Value - price.Value
	end
end)

This script is a normal script.

The model is in workspace, in a folder "Levels", in a model "Farm1", and the model I want to have transparent and canCollide false is in that model. The models name is "Doorway".

Use local script to work

local Model = workspace.Part --Model = Your Model
script.Parent.MouseButton1Down:Connect(function()
		local plr = game.Players.LocalPlayer
	    local coins = plr.leaderstats.Coins
	    local price = script.Parent.Parent.Parent.Price
	    if coins.Value >= price.Value then
	        coins.Value = coins.Value - price.Value
			Model.Transparency = 1
			Model.CanCollide = false
			Model.Anchored = true --without this line, the model will disappear
	    end
	end)

you will have to add a remote event so that other players can see that there has been a change in value