Congratulations and welcome to the Telluride Forum !!
By "placed an order", you mean you recently put down your deposit to get in line behind many other customers of the dealership for a SX allocation, right?
Hopefully your actual order gets picked up by KFOS sooner than later. Six months would be rough but 3 isn't bad. If you spec'd out an AWD Telly, that might put you on the longer end of a wait.
Did you go FWD or AWD?
Worthwhile options (in my opinion, in order of importance to me):
#1: OEM Carpeted Cargo Mat w/ Seat Back Protection <---- rubberized layer and velcro attachment to the cargo area/seats, cut perfectly to fit edge to edge and offer full protection. The synthetic carpet is low-maintenance and easy to vacuum/wash if necessary. Must have accessory/option for me. It's thin and strong and light enough so that if you need to access your storage well, just lift and you're good to go. Also, if you need to lay additional protection on top of this, it's awesome because it sits like a natural skin on your back cargo area so you can bring in additional mats/plastic/canvas sheets for dogs/dog stuff/gardening stuff/snowboard equipment/hunting gear/fishing gear/tac gear/camping gear/anything. Only $110-$115 which is great compared to the crazy expensive Canadian version.
#2: OEM Cargo Cover <---- depends on where you live, but I live in a state full of thieving scumbags near my workplace and not too far from lots of places where I park so, yeah, this is worthwhile for me, plus the Telly has cuts in the cargo area designed specifically for this accessory. It can cost up to $100 less if you can get it in your factory order than if you order it à la carte from Parts department.
#3: OEM All-Weather
Floor Mats w/ TELLURIDE stamped into the material. Perfect material, perfect fit, and perfect attachment into the floor hook tabs. Made in South Korea of an amazing material that's comfortable for your feet and heels in virtually any position where you put your feet. Just the right amount of give and resistance, when you tap your left foot on the mats, easy to wipe down or hose down.
#4: OEM Wheel Locks: see #2
Enjoy your Telly and hanging out here and living vicariously through us who already received our amazing vehicles