TBS - that is the primary and original shipping from ocean fully submerged to the closest air freight terminal to you. It isn't going to get any better than that. KP may go to your house, I don't recall but TBS goes to air freight so you need to pick it up. Plenty of people use the rock with great success and it really is probably the best stuff hobbyists can buy at the moment. Best is probably a bit subjective I know so we'll just leave it at that. KP is a good source also I hear and the corals I've ordered from them arrive in great shape. So I think it comes down to which you prefer after talking to them. I talk to Richard off and on and he is a swell guy. So shoot both a email telling them what you want and maybe go from there.
On the pest front. Don't get caught up on that. TBS lists what you may get and with a little bit of patience, and this hobby requires a lot, anything can be caught. I ordered rock for my first reef back in 1999 when we could get it live from Fiji. It was wrapped in wet news papers and I still had plenty of unwanted creatures like crabs and what not. Simple trap and a week later they are gone. Nothing was killed or harmed and I learned a lot about how the ocean works because of it.
You are going to get both good and pesty hitchhikers. That means crabs both good and bad, pistol and mantis shrimp, flower corals, sponges, etc. What I'm trying to say is that you can remove just about all if it with little to no trouble other than your time. And none of it is going to escalate to the nuclear level where you have to tear it apart to remove it. Make sense?
Lastly I'll say this. No, two things I'll end on. We can have great quarantine and isolation procedures to include dips and baths but when we take from source A and place in our display that all goes out the door. There is no stopping Mother Nature. She has an iron will and things happen. So have good protocols but know anything we add to our tanks still bring risk of adding something. And the bigger thing is this. Dry rock, regardless of source, will take 1 to 2 years to fully mature. The more porous it is maybe even longer. Meaning - 1 year in on the surface it looks nice, algae, biological filter, coralline algae, etc. Take that same rock, lift it, turn 180 degrees, and guess what. It looks like you just put it in...
TL; DR - you have a couple choices and I'd recommend reaching out to both. Don't worry about pests. If in your budget it is the best stuff and the best way to build a reef tank (in my opinion - I'm using 170lbs of dry pukani and will never recommend dry to anyone after this experience 2 years in).
Best of luck to you.
