hello- we are looking into changing our lights in our BaileyRanger 510/4,could you please tell me where you bought your light replacements from and how difficult where they to fit. Please note I am not technical so the easier the directions the better. We are looking into changing the one flourescent above the cooker/sink area, all 3 of the dome lights in the roof and possible would there be a need for a small led strip over the front chest for reading/crosswording? cheers gary