So I'm new to the Toyota ways - do they seriously not allow you to go in and order a vehicle to spec based on allocation? That is insane!
There are 12 INDEPENDANTLY-OWNED sales regions in the US. They each determine what options (Sunroof, KDSS e.g.) will be offered within their specific region. If you want (or conversely don't want) their pre-determined models, you'll be told "not available that way" -- while in another region it may be different. Many forum members travel for better pricing or options. Toyota.com's 'builder' is region-unique to the zip code you enter.
New England Region -- Maine, Vermont, New Hampshire, Massachusetts, Rhode Island
Greater New York Region -- New York, New Jersey, Connecticut
Central Atlantic Region -- Pennsylvania, Maryland, Virginia, West Virginia, Delaware, District of Columbia
Southeast Region -- North Carolina, South Carolina, Georgia, Alabama, Florida
Western Region -- Missouri, Iowa, Kansas, Nebraska, South Dakota, North Dakota
Ohio Valley Region -- Ohio, Michigan, Kentucky, Tennessee
Midwest Region -- Illinois, Indiana, Wisconsin, Minnesota
Mountain Region -- Colorado, New Mexico, Arizona, Utah, Nevada, Wyoming
Gulf States Region -- Texas, Oklahoma, Arkansas, Louisiana, Mississippi
Northern CA Region -- California north of the Los Angeles metro area
Southern CA Region -- Los Angeles metro area, and areas south
Pacific Northwest Region -- Washington, Oregon, Idaho, Montana