I must say nice tank.
That can be a beauty in a year from now.
Let me start first by your cycling process.
Why no rock?
You do know rock needs to be cycled as well, especially when you use dry rock.
Going through a nitrogen cycle you dong that best with bacteria.
Dr Tim's one and only works great it works even better if you use the ammonia as well from Dr Tim's.
If you add the rock later you going again through a cycle process.
I'm a straight forward guy in most cases and in some case this is a bit hard on ppl but you spend $2600 on a amazing setup and have no test kits to test your cycle process

How you going to know if it started and ended?
Some cycles can take up to 2 months or longer

Not saying that you need to whole nine yards on test kits but reading your game plan you need to have at least......... ammonia, nitrite, nitrate, phosphate, ALK, CAL, MAG and PH.
Just let this sink in for a moment.
Ok QT....... if you read up on the link I send you there is a sea of information on there.
Basic QT, 20 gallon long tank $20, HOB filter $20, Ammonia disk $5, heater $10, plumbing pipes and couplings for fish to hide in $10.
Some using a air stone with pump as well.
Cover the tank up as fish can jump out.
Basic set up cost tank cost $65 and if you buy it used you can find it for half some times.