Isabel brahma x light or buff brahma

I am planning to buy an Isabel Brahma but I can only afford one at the moment. Should I get the Hen or the Rooster? I have Light and Buff brahmas and I intend to breed them with an isabel until I can get my hands on another one so I can get pure chicks.

Light Brahma pullets BackYard Chickens - Learn How to Raise Chickens

Silkie x Brahmas?!, Page 2

Silkie x Brahmas?!, Page 2

Isabel Brahma Roo crossed to Buff Laced Wynodotte?

Standards for Buff Brahma Bantams and Silkies

Silkie/Brahma cross thread! :), Page 2

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Silkie/Brahma cross thread! :) BackYard Chickens - Learn How to

my brahma chickens BackYard Chickens - Learn How to Raise Chickens

Brahma x RIR, Brahma x buff Orpington

Light Brahma pullets BackYard Chickens - Learn How to Raise Chickens