Define the base project
Ask the proposal to identify the areas included in the base scope and explain why they are being considered. Keep the map labels consistent with your property sketch. Optional work should be separately identifiable rather than buried in a paragraph that makes the total footprint uncertain.
Ask what changes with an option
An additional area may affect access, preparation, scheduling or documentation as well as price. Ask the provider to explain those changes. Do not assume that adding a small patch has the same logistics as adding a nearby open area. Suitability still needs review for each proposed addition.
Confirm the selected version
Before scheduling, record which options you accepted and which remain excluded. WTG should work from the agreed scope, not a collection of tentative email suggestions. Keep the selected proposal and map together. If priorities change later, request a revised scope so the completion record can be compared with a single clear authorization.