Upgrade Issue

Im upgrading from a 75g to a 180g this weekend. The new tank is going in the same spot as the old tank. im using the same sump from the 75, also using powerheads and heaters and such. I dont have the luxury of setting up the new tank, letting everything settle and then transfer the livestock over. Im going to be putting livestock in rubbermaid containers while we move the old tank and set up the new one. My question is about the sandbed. My current tank has 1 1/2 - 2 inches of caribbsea aragonite, i didnt rinse it when i initially set up the tank, have vacuumed it a bunch and have had no issues with it. Most people have told me to just get rid of the old sand and replace it all together. Getting dry sand at this point is probably out of the question because i dont know anybody that carries it and if i order online, it wont be here before the weekend. So i will probably just buy the same live sand that i bought before. Alot of people say to rinse it, but if i rinse it, wont it kill all the living bacteria thats in it. I know it will help eliminate some cloudiness, but i can be careful filling the tank, as i was with the 75 and avoid a lot of that. if the sand is rinsed and all living stuff dies, wouldnt that cause a massive ammonia spike. being that i will have to put my livestock back in the tank after its set up, i cant have that. wouldnt it be better to not rinse the sand and have less die off. I have about 120 pounds of LR from my 75 that will be in the 180 and im using the 75 gallons or so of water from that tank to put in my new tank. in hopes of having a good amount of initial bacteria to eliminate the tank cycling again. Please give thoughts and recommendations as i am carefully trying to plan this out before i begin. The next few days are crammed with stuff i need to do to get ready. Im excited, but nervous. this is my first upgrade/transfer. Thank you in advance for your help