I used to run trips out to these wrecks years ago, we called it the '3 wreck trip'.
We left Pattaya pier at about midnight (make sure you buddy up and take care,it's the most dangerous part of the trip), dive all day and back about 9pm the next night.
I used Gere's boat , the man has hundreds of marks and gave us different wrecks every trip, some good,some not so good, but a wreck's a wreck, right? Even the worst one is more interesting than lumps of coral, to me anyway!
The Liberty wrecks are in about 25, 30m, bit netty, bit silty, but interesting.Your numbers are good.There's dozens of containers on the bottom around there too, no idea what's inside.
I have dozens of Gulf of Thiland marks, what is the rough location of Sarasin and I'll see if any match up.
If you fancy some long range much deeper wreck diving, I'm your man. We run regular liveaboards into the gulf. We've just returned from a trip to Cambodian/Vietnamese waters where we found the Araosan maru, 7000 tons, sunk by USS Hardhead.
Have a look at
Tech Thailand
Jamie