A short honest page rather than a deck. Revenue is build fees plus recurring service, margins are constrained by delivery capacity rather than by cost of goods, and the binding risk is that delivery currently depends on one person. Capital does not fix that on its own.
Two lines: a one-time build fee that covers engineering time at roughly break-even, and recurring service revenue that carries the margin. Gross margin on recurring is healthy because model and telephony costs are a minority of the monthly. Net margin is capped by how many builds one engineer can deliver well.
It would fund a second delivery engineer and the eval tooling that makes a second engineer productive without the founder reviewing every build. It would not accelerate sales, because sales is not the constraint — delivery capacity is, and buying demand ahead of capacity is how agencies destroy their own quality.