Dude you have an awsome gym to train in as well as equipment, yoke walk, farmers walk, as well as a run to do them inside.
I hope they have amateur contest and you can build up strenght and confidence, going up against monster's from the start is humbling.
My first contest i hadn't no implements to train with , i thought just guys like me would show up, i was top 3 strongest guys in gym , but had way better flexibility cardio.
Anyway my 295 x 8 incline on barbell transfer to 4 reps 240 log press incline.
I remember i got 22 reps on 170lb oxygen tank curl. Then A guy named Phil Phitzer curled it like 60 times.
It is a psychological reward that comes from shouldered your firsr 300 pound stone or flipping a 800 pound Tire ten times.
As well as since it not mainstream sport , you will meet and talk to guys you look up to like Brian shaw.
Funny story, we had a free shuttle from hotel to a country bar incahoots huge bar. The contest was in parking lot the next day st louis.
The bouncers were like average looking dude's, didn't look exceptional fit or large, then the look on their faces when likes of a dozen 300 pound beast walk in . Would you really want throw phil phitzer, magnus, virtanen, Baskin, out.