Have the K+M press with Force Pack, would highly recommend. Get a mic seater, it's worth the extra $50 or so for ease of adjustment during testing. If you want to go full-rabbit hole the non-mic die is cheaper to add later, and you can still get shims from Brownells to be super-anal-retentive in adjusting the non-mic die.
I also thought the same way you did at first, oh I'll take this to the range with me. One honest bit of feedback about that - the LE WIlson in-line dies I use are more difficult to adjust than standard mic seater dies, and have more parts (base, chamber, seating cap, and the press as separate parts). So if you're looking to be able to re-seat bullets deeper at the range then a Forster mic seater and a Lee hand press are a very viable option just to nudge bullets deeper. One rig with no removeable parts, very similar control over seating depth. I use that set up to knock the pressure ladder down to the best of the 4 coarse depths.
If I was trying to final tune in 0.002 increments the arbor press and die hassle would be worth hauling it out there, but a hand press is good enough for the big jumps.