Abstract: A bracket support structure includes a first module. The first module includes an inner platform, a vehicle body insertion end extending inwardly from the inner platform, and first and second end clip portions extending outwardly from the inner platform from opposite lateral ends of the inner platform. The first and second end clip portions each include a clip fastener positioned at an outward end of the first and second end clip portions. The bracket support structure further includes a second module. The second module includes an outer platform that includes a plurality of differently sized and shaped holes for receiving a plurality of different fasteners, and first and second clip ends extending inwardly from the outer platform and configured for inserting into a respective clip fastener of the first and second end clip portions of the first module. Each of the clip ends further includes a clip fastener.