<HTML>Hello Clark,    Of the two pianos that you refer to for rebuilding the Jesse French is a far better choice with everything being equal.     The French and the K. Campbell Co. had two quite different mind sets  in building pianos.  K&C was a holding Co. that bought many brand names. And built pianos under those names for the mass market.      Jesse French on the other had one factory and built a piano under that name.  They built other names but in that factory. Their second line piano was  Lagonda this was done so they could offer a lower priced piano than the Jesse French to their dealers.    The scale ' C '   was their most popular upright. The W.N.G. action was used in most of their pianos and most  used the " Norris "  pedal system.      Jesse French upr. #  70526 was such a piano.     It had 10 singles and 16 double strings in the bass.      As a side note,  the back of the sharps was shaped the same as the front on most pianos.     The K&Campbell is a far better known piano but in fact it was not never intended to be of the quality as the  J. French.     There are upr. pianos whose potential is greater than the J. French of course the Bush & Lane is my top choice followed closely by the Thomas Loud. Then it would go to specific scales in other pianos  such as the ' G '  Mason & Hamlin.       Hope this helps,   Jack Wyatt     </HTML>