Build a follow-up cadence that never repeats "just checking in"

I need a follow-up cadence after a demo where they said budget approval was pending with Sarah Lindqvist at Northbridge Analytics. Deal stage: post-demo, awaiting internal budget sign-off. What's still open or unresolved: whether the CFO has actually seen the proposal yet. Channels I can use: email, LinkedIn, phone.

Build a 5-touch cadence over 3 weeks, mixing the channels listed rather than running them all through one channel. For every touch, give me:
- Day number, relative to today
- Channel
- The ONE new piece of value, information, or reason to reply it adds — no touch may simply restate the last one, and no touch may use "following up," "just checking in," "wanted to bump this," or any functional equivalent of those phrases, since a touch with nothing new to say is a touch asking for attention it hasn't earned
- The exact message or call talking point, ready to send or say without further editing

VARY THE VALUE TYPE ACROSS TOUCHES
Don't make every touch a variation of the same value type — mix genuinely different kinds of value across the sequence: a relevant piece of content or data point, a direct question that moves whether the CFO has actually seen the proposal yet forward, a small proof point or customer story, a deadline or time-sensitive reason to act, and a check on whether priorities have simply changed. A cadence where every touch is "here's another article" is nearly as repetitive as one where every touch just says "checking in," even though no single touch technically breaks the banned-phrase rule.

THE BREAK-UP TOUCH
The last touch must be an explicit break-up message: state plainly that you'll stop reaching out on this cadence, and give them one easy, low-guilt way to restart contact later if their situation changes — no guilt-tripping, no exaggerated finality ("this is truly the last time"), just a clear, honest close.

MOST-LIKELY-TO-LAND CALL
After the full cadence, tell me which single touch is most likely to actually get a response given whether the CFO has actually seen the proposal yet specifically, and explain plainly why the others are more likely to be read and ignored — don't hedge this into "they're all equally important," since if that were true there'd be no reason to sequence them at all.

TIMING SANITY CHECK
Look at the spacing between touches relative to 3 weeks and post-demo, awaiting internal budget sign-off and flag if the cadence is too aggressive (multiple touches close together reading as pressure) or too sparse (long silent gaps that let the deal go cold) for a deal at this specific stage — a cold-outbound cadence and a post-demo cadence should not be spaced identically.