I won't comment on which of the stanzas I prefer overall, since your question was just about meter. Metrically, there's nothing really wrong with either stanza.
What you've done in the first line of the second version is to "clip" the first iamb. In other words, you have a one-syllable foot consisting of a metrical beat. The use of "clipped iambs" in the first foot of a line is an extremely common practice that you find countless times in poetry going back for hundreds of years. In fact, it is so common that many people would hesitate to call it a substitution or a variation. It's just one of those things you get to do . . .
but with one slight caution. It's best to use clipped iambs when the initial syllable of the line must obviously take a beat. For example, if the line begins with a two-syllable word that must be pronounced with a stress on the first syllable. "Only cowgirls get the blues," for example. The reader cannot be misled because no one would say onLY and everyone would say ONly. In your line, though, "In" is a little, one-syllable word that readers may rush over without giving it a beat, and, like mrh, they may treat your first foot as an anapest.
Some people may object to that, I'm sure, but I'm with the general consensus that it doesn't really matter as you've done it. I didn't feel any metrical bump.
By the way, there's one spot where I believe mrh's scansion was incorrect. While the initial anapest is plausible, mrh's scansion misses a beat in the third line. I'll bolden the syllable that should have been shown to have a beat. Also, I'll bolden the beat in the fourth line that I think mrh must have just forgotten to indicate:
In this TOWN the TALE is TRAgic
SUMmer DAYS have LOST their MAgic
RED Dog, PINto and the CHIEF
are BORED and SLEEP all DAY, good grief.
The "and" in L3 takes a beat because it is "promoted," i.e., even though it's a "little" word, the ear hears it as a beat because of its position in the line and because it takes relatively more stress than the surrounding syllables. Another reason it takes a beat is because otherwise there would be three unstressed syllables in a row, and that's not something the ear tends to register. The ear tends, instead, to "promote" the middle syllable and hear/feel it as a beat.
Anyway, this is a lot of words for saying that I think both stanzas are metrically sound.