How to I cut excess lengtth from pre-made formica countertop.

I bought two pieces at HD, with 45 degree ends, which are fine, but I
need to cut off at the other end.

I intended to follow advice I once read here about cutting a bit
longer and finishing with a carbide router bit.

But I forgot that my pieces have a bull-nose front end, and a built-in
splash-back. The router won't get close to an inside curve, and won't
have a surface to rest on when doing the front outside curve.

I bought a 140 tooth 7 inch blade, but now I think a circular saw will
have the same problem. (I wanted a fine tooth blad for my 5 1/2 inch
circuar saw, but couldn't find one. Can I put a speed control on the
7 1/4 inch saw to make it cut more slowly? I have one I could use.)

Do I need to use an electric sabre saw, or a handsaw? I can clamp a
piece of wood as a guide for the flat part in the middle, but I don't
see how I can do a perfectly straight line for the rest.

Should I use a sabre saw with a clamped fence for the middle and a
hand saw for the curved parts?

I'm so unsure. and I'd like to do this outside before it gets cold
out. Only 65 degrees today.

Thanks.

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