Day of Wedding Decorator?

So my fiancee and I are getting married at Crest Hollow Country Club next year. There are a bunch of DIY wedding decorations I want to include throughout the reception space, and a few for the ceremony space. A florist will be handling the centerpieces, but they are just too pricey to rent/buy the decorations I'm dreaming of. Anyone out there in the same predicament? We can't do it ourselves as the venue only allows you to come 2 hours prior to the start of the ceremony, and we will be using that time to take photos. Is there such a thing as a day of decorator, that will set up my decorations and thats it? I was thinking of a day of coordinator/planner but I really don't need someone for the whole day! Some of the decorations include a sequin tablecloth & sign for the sweetheart table, a memory table for those who have passed, and some decorations on the place card table. I really appreciate any help you guys can offer!