c.violacea and c.nobilior seedling question

[Autumn Child]

I am planning to purchase seedling of cattleya species.
One of the seedling pics is c.violacea semi alba icabaru mc and the other one is c. nobilior coerulea.

My question is:

How long will it take to flower these seedlings? They seem pretty small and i can only afford the small ones. Mature c.violacea icabaru (4-5 pbulbs)cost around roughly $600 USD in china.

Which one do you recomend? two c.violacea seedlings or one c.nobilior coerulea seedling? two c.violacea cost slightly more.

Are they easy to grow from seedling? I have mature violacea and nobilior and they are easy to grow in my growing space but i am not sure about seedlings.

thanks