I live in Ellensburg and go to Central WA university. There are lots of gyms around the Seattle area but I am less familiar with them the closest ones I can really vouch for would be ocals gym in lynnwood where justin Randal trains, Imperial Crossfit in Kent where Grant Higa trains, Flex fitness, Stan Efferdings gym in tacoma, or Seattle Strength and power in downtown seattle. As for training with Sheiko if you lightened up the training weights and shortened rest periods it could help you move quickly. I've never had to deal with limited workout lengths because I generally build my class schedule and work schedules around my workouts haha. If two a days are an option the program breaks down well into that pretty well. you do your first 2 core lifts in 1 session and then come back later and do your last core lift and accessories. Hit me up with some more details about what you were thinking of doing and I'd be willing to look at it and try to see if I can't help you figure it out.
Of course you may, there are 2 real reasons. first off the benches I train on are low and slick wf you try to set a big arch you slide all over the place, it sucks but I don't have many options. 2nd is that I was diagnosed with spinal hyper lordosis and facet syndrome a while back which put me out for about 3 months basically my spine is naturally over arched and it was causing a lot of problems so I moved my squat stance in, cut down my bench arch and relearned how to lift.
awesome glad to have you along