I am interested in purchasing Mure-Peyrot Boulange Lame [1] from brotform.com. I know you can make your own version but would rather have one that has a solid body and a curved blade. Does anyone have this particular item? If so what is your feedback, good/bad? 

http://brotform.com/zencart/index.php?main_page=product_info&cPath=6&products_id=47 [1]

Does anyone know if you would have to purchase the replacement blades made for this specific model or can you purchase doubled-edged razors from a pharmacy/Wal-Mart? Buy the looks of it, it looks like the replacement blades have a universal design to razors used for shaving?

http://brotform.com/zencart/index.php?main_page=product_info&cPath=6&products_id=39 [2]