You need to read Mach4's build thread....no kit needed, he explains it all clearly and for the most part it was a bolt together with minor fabrication.

Also, if you're really interested explore the SL market a little closer. I've seen nice examples in the $3-4K range and less with mechanical problems which is what you want anyway if you're doing a diesel repower.

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You can't always get what you want, but if you try sometime you just might find you get what you need.