It isn't much you can do about this version, you will need to make that 20 miles trip, so make sure you get comfortable, also if you don't want to drive twice, make sure you take a working Sdcard with you, the smallest size you have, it's very common for some of those Sdcards not to work for flashing these miners, there are no known/simple to explain reasons for that, but sometimes you need to try a few Sdcards to get one that actually works, and then you want to tag that card and make sure you keep it in a safe place.