I don't know if you would consider a Seoul emitter instead of a cree/rebel but if so Peak can make you a light at virtually any level you want.
You can choose from aluminum, stainless or brass bodies. [Ti may also be available]
Choose your battery [AAA, AA, CR123, RCR123]
Choose your emitter: Seoul or Lux or 5mm
Choose your power level: [obviously brighter will get you less runtime / or you can choose your runtime requirement and they will give you max brightness for your chosen battery for that runtime]
To an extent you can choose your beam shape as their different heads [ie Pacific, Baltic etc can have different beam qualities]
EXCELLENT build quality, rugged and durable.
They stand behind their made in the USA lights.
"Custom" lights for less than custom prices.
Don't try to get all this from their website though, you'll probably just get frustrated - Give them a call.