yeah I don't know how about making one personally, but physical modeling (particularly Pianoteq) is near best-in-class if you want a highly realistic piano soun

yeah I don't know how about making one personally, but physical modeling (particularly Pianoteq) is near best-in-class if you want a highly realistic piano sound that you can then tweak to your personal preference over something more traditional like a Sampler lib such as Kontakt's The Gentleman.