Ahhhh! Help!!

Okay, since my RR is going to be more fall themed I have decided that I would like to try to use LHN's Acorn Hill as the center design. However, I am having a few problems.

First - The pattern calls for CC Belle Soie Silk threads. If I stitch the design in silks, will my RR look silly if others use cottons?

Second - I'd love to stitch it in cottons. Does anyone have the pattern and know if there is a conversion on it for other threads?

Third - I can't find a place ANYWHERE that sells the recommended Lakeside Linens Vintage Lentil linen... in ANY count, let alone 32. I will need a piece that is atleast 25 x 14. I am open to other fabrics, but I am HORRIBLE at picking them.

I spent about 4 hours designing a 9 squared layout yesterday, but I have decided I do not like it. I didn't leave a place anywhere for names and locations :( I have decided I would like a sampler type design in the center of my piece with 4 squares on each side. Maybe I should forget the Acorn Hill pattern altogether and pick another design. The only thing is that the design needs to be about 130 long by atleast 50 wide.

Thoughts? Ideas? Suggestions? Thank you!