Would I be better off setting up a new tank vs this one? Getting used makes me a little nervous but I see the value in it.
That's really up to you. If the tank is in bad shape or it would freak you out having used it may be worth it to start from scratch. It just all depends on if it gives you more peace of mind with it being new. You can't really enjoy it if you are the type to constantly worry that a seam will explode or something.
I have had five different tanks in the past 16-18 years sometimes multiples at once for different reasons. Four of five were used tanks and I never had any issues with them. The one that was new is my current 90 gallon reef and I stopped counting at 5k. Out the door with the tank, stand, sump, MP40, mp10, reeflink, radions, return pump, one new reactor with pump, a new pump for an old reactor I had, sand, heaters and a custom rock wall I was out over 3.5k. I used rock I already had or that would have raised the cost as well. This is not a cheap hobby and I save money where I can, but this was a new tank for a new house so I went a bit more than necessary.
I have honestly seen more posts about new tanks having bad seals than old ones. The reefer series is a very good tank though and I haven't seen any complaints on them. As long as the seals are still good I personally would pick it up. You can still start from scratch with this tank and you are still saving a good chunk of money. Upgrade whatever you want over time to the specific equipment you want. If you want quieter pumps, go for a quieter one that runs cooler. You would still have a backup if the return failed. Rather have LED's, upgrade and either sell the t-5, use it as supplemental or keep as a backup in case you drop your fixture in the tank. It happens.
I'm not in the market for another tank at the moment but if I lived near you, I would have bought this two days ago and stored it or set up another one. Again, this has to be your choice though because only you will know if you can live with a used tank.
