The "less range if you are loaded with K pitchers" is actually a myth that has been around for a long time, but has been disproven. I ran a league a couple of years ago to test exactly that. We used the exact same set of A+ range position players. Half the teams had an identical high K/9 staff, and the other half had an identical low K/9 staff. The key is making sure that other stats for the two staffs (OAV#, BB/9#, HR/9#) are as close as possible, which we did. There was NO difference in the amount of plus plays between the two sets of teams. The low K team simply did not have more plus plays.
The high K thing sounds good, because in theory more K's = fewer balls in play = fewer opportunities for range to turn hits into outs. BUT, in SLB, the determination of "hit or out" comes BEFORE the determination of what kind of out (GB, FB, K). If the hit or out calculation = hit, then the possibility of a + play exists. If the hit or out calculation = out, then no + play can happen, and only THEN does the algorithm determine if it's a strikeout.