It is from the Italeri KC-130F boxing (which is basically a C-130E).

If you google N2679C L-100 you will see what I mean!
I started with basically this

Some window filling later (as seen above) and the tail was attached

Some more filling is required I think

Since this L-100 is based on the C-130H model the kit engines need lengthening as the kit nacelles are short. I could use aftermarket fit-for-purpose engines but I am saving them for other C-130 builds

Another 3 engines to do. The inboard extension will be a couple of mms shorter as Italeri staggered the outboard props rather than keeping them all aligned.
I also lengthened the port forward main gear sponson section by the same amount as the nacelle, again the H models have longer sponsons on both sides. The other side is yet to be modified.

