I don't remember any marker boards 2 years ago. But then I don't remember a lot from 2 years ago
If it rains much during the week, it's big puddles with firm trail underneath and mud either side, but not the entire course - just sections. I did it in Adios 2 and just resigned myself to having wet feet the whole way (lots of bodyglide or vaseline). I did slip around a fair bit, but took little steps to reduce risk when it got slippy. It was fun and challenging with the variety of surfaces.
With a 1:27, you might dip under 3:05 if it's bone dry and not windy. Otherwise, I'd say stick to that pace on the paved sections and back off in the wet stuff and get close to it and finish strong. It's a flat course, but if wet, there's no chance. And remember, it's an out and back course, so on the way back, the ground will be churned up a bit by runners. Look at the winning time last year when it was raining at the start - 2:50.