Help with SetScript

[cokedrivers]

I'm trying to make a clickable button for my data panel that allows the user to one click either a Repair Bot or Repair Mount.

I can not seem to get it to go threw all the options.

Here is the code I'm trying to wwork with:

	plugin:SetScript("OnMouseDown", function(self, btn)
		local RepairProfession = GetProfessions()
		if btn == "LeftButton" then
			if RepairProfession == "Engineering" then
				CastSpellByName("Field Repair Bot 74A") or CastSpellByName("Field Repair Bot 110G") or CastSpellByName("MOLL-E") or CastSpellByName("Scrapbot") or CastSpellByName("Jeeves")
			else
				CastSpellByName("Guild Page") or CastSpellByName("Guild Page") or CastSpellByName("Guild Herald") or CastSpellByName("•Argent Squire") or CastSpellByName("Argent Gruntling")
			else 
				print('|cff33ff99cData:|r |cffFF0000No Repair bots Available|r')
			end
		elseif btn == "MiddleButton" then
			ToggleCharacter("PaperDollFrame")
		elseif btn == "RightButton" then
			CastSpellByName("Traveler's Tundra Mammoth") or CastSpellByName("Grand Expedition Yak")
		end		
	end)

I was able to get the CastSpellByName("Traveler's Tundra Mount") to cast the mount spell so I know it works but I keep getting an error with the "or" in the formula.

Thanks for any help with this.
Coke