ESL for Truckers Demo Project (4 Screens)

We are seeking a contractor to build a demo for our ESL for Truckers program. The goal is to create 4 interactive screens from our Road Signs lesson (STOP, YIELD, SPEED LIMIT, NO U-TURN). This demo will help us select a long-term partner for building a full 15-minute interactive lesson. Screen Description Key Interactions
STOP Quick Check Full-screen STOP sign with audio prompt: 'What does this sign mean?' Learner chooses from Stop / Go / Turn.
Feedback: ? Correct / ???? Retry.
YIELD Roleplay Truck approaching YIELD sign. Audio prompt: 'What does YIELD mean?' Learner chooses from options.
Feedback: ? Correct (safe merge) / ???? Retry (hint replay).
SPEED LIMIT Recognition Visual: SPEED LIMIT 55 sign. Audio prompt: 'How fast can you drive?' Choices: 35 / 55 / 75.
Feedback: ? Correct (safe driving) / ? Wrong (too fast/too slow).
NO U-TURN Scenario Visual: No U-Turn sign at intersection. Audio prompt: 'Can the truck turn here?' Choices: Yes / No.
Feedback: ? Correct (continue safely) / ? Wrong (unsafe/stuck).
Deliverable: A mobile-friendly interactive demo (H5P, HTML5, Glide, or similar) delivered within 1 week. Budget: $150–$250 flat fee. Successful contractor will be awarded the full lesson build ($1,500–$2,500).