Old houses are smarter than you give them credit - you're feeling flush or have money saved up and bam, money pit savings sucking mode activated. Every friggin time
One thing I would check in advance is I'd bring a wifi signal analyzer, see how much interence is in the 2.4 GHz range. Then maybe even test how good 5 GHz reception is in each room.
Of the six military guys I asked about it, five felt it was exactly the kind of thing they fought to protect and had no problem with it. The sixth said he thought it was disrespectful but said so is killing people and blowing shit up and the military does that itself.
Have you polled enough of the military to see whether it was seen as disrespectful by the majority?