Just FYI, you would never remove 1/4" of wood in one pass. That's a multi pass situation on any planer you'd be using. I'd probably remove a fraction from both sides to true up first. Doing this in even two shots will gouge your wood and be really hard on your tools if not ruin the blade.

Either way, I'd find a shop that would do a couple treads as advised.

Or you can get an old No.7 Bailey, learn to sharpen irons, and do it the old school way….it would be cheaper. But not cheaper than paying a guy. And you might need some extra treads. lol.