Rust repair Questions, Welding, cutting, POR15ing, etc. Options

[rjames]

Rust treating, killing, etc, and just want to get some input before I get to crazy with the MIG.

Here are some questions:

I have some floor pan issues. Are the holes too big just to try and fill? The following photo is from the driverside, under the seat after the tar has been removed, and I've grinded down to bare metal. Should I advertise for someone who's cutting up a car to cut this pieces out for me, or should I just go buy some sheet metal and make a patch knowing it won't really match, but can at least be made to 'line up'?

[rjames]

QUOTE

you need to do something with the upper left portion of that pic as well, looks like you've got some serious issues building up in that rocker  when you get the section cut out, put a blow chuck up at the front vent hole of the rocker (inside the car by your left foot) and blow towards the rear of the car to clear out any rust or debris that may be in there, and if possible spray some of the OSPHO into the whole rocker.

Sounds good, but is the tube that's inside the rocker all metal, or is it some
kind of foam hose or something. I don't want to mess it up, and I've seen pictures
that seem to show some kind of material other then metal that's used for the heater
hose in there.

Scotty b, thanks for the info, and more questions if yer up for 'em:

The rust at the top runs along the entire rocker towards the front of the car. I wasn't able to punch holes in it with a screw driver, so my hope is that the rust is all on the outside. However, I can't get to it with the grinder either because it's tucked in under the door sill, so I would love to just be able to treat the outside of the majority of the long with something. Is OSPHO like Metal Ready? Or does it work differently/better?