Replacing rockerpanels and floor could use some advice.

My 73 Duster will hopefully finaly get the new floor and rockerpanels so badly needed.

I have a new full floorpan and all four rockerpanel pieces from AMD.

Here is my plan that i have thougt alot about regarding the order to do things in,those rockerpanels sure seems alitle complicated to cut out, without giving myself a bunch more problems than i already have.
the plan so far is:

1 make subframeconnectors.
2 cut out the outer 10 or so inches of the floorboard.
3 break inside of rocker loose by cutting and drilling out spowelds while trying to keep as much of outer rocker intact to have as a reference.
4install inside rocker.
5 cut out ouside rocker and screw up as little as possible of the quarterpanel infront of the wheelhous as possible(yeah i believe im goint to need to cut the lower part of the quarterpanel out to get to the spotwelds and will have to fab up some kind of replacement for that panel later since i could not afford that piece of reprometal at this time.)
6 install new outside rockerpanel.
7 repeat step 2-6 on the other side.
8 cut out rest of passanger compartment floorboard.
9 install new floorboard.
10 create new outside floorpanels over the leafspringmounts(i believe i will have to cut thouse out to get to the rockerpanels and thats fine,they are rusted out and have some hideus repairs done anyway.)

writing it like this makes it seem easy,i bet it will get worse when the plan crash headon into reality,therefore i hope i can get some advice from those of you who are alitle smarter and see if there is anything more i need to think about or if my plan needs to be revised somehow before i do something realy dumb or harder than necessary.
Thanks in advance and sorry for my not so great english.