Will 3rd party "Linhof" lens boards work OK in a 4x5" Chamonix?

[AtlantaTerry]

Yes, the folks at Chamonix make some very nice carbon fiber Linhof-style lens boards but at $75 they are kinda expensive.

So I was looking around FleaBay and noticed some metal Linhof-compatible lens boards for about 1/4th the cost of the carbon fiber ones.

I'm not sure if all the sellers on FleaBay are selling boards from the same manufacturer or if there are a several makers.

Does anyone here have experience with these 3rd party boards? Would any or all of them work properly in my new Chamonix F1?

Do they need any modification to work properly? Such as sanding down some of paint or edges? (I read somewhere that a photographer had to do that.)

Thanks,
Terry