you're strong as shyt.
I did a 405 single with straps just the other day. I'm cutting at 170 right now. 5'8" gang in the building
I used to use chalk when deadlifting but I got Kwame brown hands so even with chalk the bar tended to slip.
After months of horrific cuts and near-infections every time I deadlifted I decided to give straps a try. After I banged out 315 for 10 super quick I threw chalk in the bushes. Nothing more frustrating than trying to deadlift and the fukking bar slips, especially when you wanna emphasize the eccentric portion of the deadlift or bang out real rapid sets.
but OP as serious said, don't settle for using belts. Never ever used a lifting belt in my life. Straps are cool because I could give a shyt about my forearms being involved in a deadlift, but your core is a big part of the the squat and deadlift and even overhead presses.
Whenever you inhale deep to brace, you're mimicking what the belt does, which is keep your core tight. Just keep doing them raw and build your core strength up.