Mini tub questions

Have been thinking about doing a mini tub on my 74 scamp but am looking for some tips/ tricks from some of you guys out there who have done one. I've done alot of reading on here in some other threads and have learned alot, i've read a few places there is a how to power point floating around and was wondering if anyone would be willing to share? Anyways just looking for some further tips and tricks, i did a small amount of mig welding in high school but unfortunately the instruction was poor and the welders were even worse so needless to say its a little intimidating to go at my car guns blazing with such little experience. Any suggestions/ tips are greatly appreciated! thanks in advance