Help with stabilising a Cambo SC 8 x 10?

[wallpaperviking]

Hi,

Hope someone here can help me. I recently purchased a very beaten up Cambo 8 x 10 SC. I do not have access to it currently, so I have attached a photo from Ebay of the same model. The only difference is the tripod base. Mine is basically a somewhat sold metal block that the rail slides thorough and then there are four wing nut type things that tighten it.. The whole thing is a bit rusted and crapola, so am struggling to have the whole thing stable.

I also have a smaller tripod base that is made for the 5 x 4 model (attached) and am currently using that, which is providing more stability than the 8 x 10 version.

Any suggestions?

Apologies for the vague description, hope somebody here knows what I am talking about

Thanks!