I do not know wooden planes but did recently purchase a copy of Kenneth D Roberts "Wooden Planes in 19th century America. He has a lot of info on H Chapin (which I have not read). On a 1859 price list for H Chapin he lists a model 234 for $ 4.50 but you probably want a more up to date price which I don't have. It is listed as a Grooving Plow Plane and I believe it came with 8 blades.