Beginner project questions - Korean horn bow

I've been fascinated by traditional horn bows for a while now, and I really want to try making one myself. More specifically, I want to make a Korean horn bow with a bamboo core and water buffalo horn.

So far I've read the article in TBB3 and everything I could find on the internet. I ordered Adam's book last week, so it should be arriving in 3-5 weeks.

In the meantime, I want to start gathering materials, but I have a few questions:

1. Would a Turkish horn bow be better suited for a beginner project?

2.There is a japanese garden shop nearby that sells green bamboo logs with 4-6'' diameters. Could I use them for cores?

3. I'll order horn and sinew from Highland Horns. How long should the horns be? And how much red stag sinew do I need per bow?

4. I haven't been able to find mulberry wood, so I plan on making the siyahs from mountain maple: http://www.pfeilschaft.de/epages/617917 ... 0Siyahs%22
Is this suitable?

All advice is much appreciated :)