Its all in the prep , Andrew ....make sure you cut out ALL the bad metal , buzz the paint off if you are not sure . It will save time later as if you dont you will be be putting in endless little patches as you go - like a good tree , prune hard . Theres LOADS of info on here and lots of pics to work from , especially the boot floor . I have found that drilling out the spots is the best way to go . Invest in new cross members or use some channel , put heavy sections at the rear where it came with useless strap pieces . Take the opportunity to clean and paint the upper chassis that gets revealed and do whatever work is needed to tank top and sedimenter - its a hell of a job getting to them later .
A weekend should see a floor done if you have all your supplies in and some extra steel . Look at the things in the pictures that others use for some ideas of what to buy in advance and what tools to have on hand . Get in underneath well beforehand and soak the seatbelt anchor points in oil , wire brush and soak again .....they can be a real stalling point when you just need to get on and fabricate . Get some cardboard boxes and tape and old carpet to cover the inside of windows and screens when grinding and welding . I know it buggers the light up (but welding is better in low light) and you will need lamps but those sparks burn into glass and dont go away .
Its all on here , dont be overwhelmed by it , once you have done one you will wonder what all the fuss was ....until you have to put all the interior together again !