In to follow your progress, brohemoth.
Some thoughts on your pulling. Back looks safe through all of it, & I like that you don't jerk the bar off the floor. Nothing good comes of that. But the bar seems a touch far out from your shins when you begin the lift (based on where the bar appears to be lining up over your toes), & the first thing that happens every rep to initiate the lift is your butt kicks up to generate force to help you break the ground, which makes it more of a straight-leg & makes lockout more difficult (once it clears the knees you know have a biomechanical disadvantage). Your pullthru is, however, very solid, indicating you really need strength off the floor.
Setup the way you've been doing it (hinging at the hip first to bend down & grip the bar), but try to pull yourself into the bar before you start the lift - this will have the bar on the shins once you tuck into it, & the hips up higher/closer in a stronger position. Think about pressing with your legs/glutes to pull the weight against your body as opposed to rising. You need to get in closer & initiate the pull with the strength of your legs, not inertia of a butt pop & lower back might (which is naturally higher initially but not the safest at max effort).
You said you really want that 1k total, so figured I'd share my thoughts to help you get there faster. I used to pull just like you do now. The trip from 405 to 495 wasn't so bad, but I've had to do a lot of work & learning to claw my way to mid 5s. Hope this helps somehow.