BWTMT Brickworks Mini OP (Mini Optimus Prime) Kit Order Form. Please fill out the following form to order our custom Lego model. Pre-Orders are available until Oct 31st. Deposit of $20USD is due upon pre-order submission and will be billed via Paypal Invoice. The Remainder ($32USD for customers in USA and Canada or $39USD for International customers) will be billed when kits are ready to ship (likely mid November).