I would advise against a HF impact. I have the Bauer 1/2" impact and it struggles to remove an 80 ft-lb lug nut, despite being rated at 450 ft/lbs. I've had it < 1 year and use the big 5 amp-hr batteries. At first it was fine, since then the performance has significantly degraded. I now have to manually break my lug nuts loose with a breaker bar, zip them off with the impact, set them with the impact, then torque them back down. Or deal with using my HF Earthquake air impact (which is decent but I only have an 8 gal compressor so it's slow). It's a shame as I have at least 5-6 other Bauer tools from HF and they are all pretty good - I air up my tires with a $25 Bauer compressor which has been flawless and is powerful. But, my HF impact is now a $120 paperweight.
IMO - if you are getting an electric impact - pony up and get a DeWalt, Milwaukee, etc. Buy once, cry once. My $120 on the HF impact is
1/3 of the way to a Milwaukee impact that is rated at 1,400 ft/lbs.
Regarding my setup - I carry a 25 inch long, 1/2" breaker bar with me, plus a 3/8" socket set and a 1/2" to 3/8" drive adapter. This is really easy to store and should take care of anything you really need. An electric impact would be nice to have for a quick tire change on the trail, but it not really a necessity (IMO) with a breaker bar. My breaker bar is from HF, however, it has been great

.