Hi

Just take the no. of stitches from the pattern and divide that by 10. You will get the right size of the fabric. About the treads I always buy 2 of each color that is listed in the pattern or leaflet. Good luck

This is a kit by Dimensions. As such, it comes prepackaged, with the fabric & the floss, & most likely a needle too. To change the fabric count, you would also have to buy the fabric separate, then buy the floss separately, after you convert it to another brand, (as Dimensions uses its own brand of floss, & quite often don't include enough to finish the project). Being you would be enlarging the pattern, you would need a bit more than is included in the kit. When all is said & done, you would be paying the price of the kit, plus the size fabric you want, plus the floss. You could always donate the fabric & floss, that is included in the kit to someone,or to a center, like a senior center, or a woman's shelter, so it wouldn't go to waste.