When i started strongman getting tje equipment took up tome and money, this might help. Get the standard barbell, look for a farm implement tractor repair shop, you might score some old scap tire, tire flipping has huge benefit, use you dumbbells for farmers walk if even done light for mega distance effective. Zercher deads on a barbell was only prep i had for stones, than i went to a landscape company and got a 210 and 270lbs stones for like 40 bucks, then for your sled pulls and drags, go to big box hardware store buy the bucket only part of wheelbarrow, 30 ft nylon rope thats fits through holes on bucket, use sandbags or plates for weight , you can get a good harness off Amazon for 30 bucks, hunter's use them to drag deer out of timber. Squat rack can be bought for cheap.
For yoke walk a bar owner let me pay deposit on two kegs, i unscrew tops (have fun) fill with sand then when cannot get any more in fill with water, let settle than put more in this will give you two 210 lbs kegs. For yoke walk put some chains around top of keg hook up to bar, now you have kegs to practice loading events with also. If i think of any thing else ill let you know , sometimes the guy's putting on contests will open training day where you can come practice on implements, plus you fellow competitors might sell you some of their outdated eqip cheap.