Front to rear outer floor patch?

[bmrrwolfe]

So i am in the process of repairing the rust on my project truck and the complete outer floor was junk, i cut it out and got a good deal on a rear outer floor patch panel and was going to pick up a front floor patch panel, but then changed my mind to possibly get the one piece outer floor.
This is an example of the patches.
http://www.lmctruck.com/icatalog/cb/full.aspx?Page=22
I have #4 and was going to get a #3 even though i only need the outer first few inches of it, but it doesn't look like it goes all the way back to the rear patch?
So i found a #5 for $90 shipped to me, should i just buy that?


Sorry for the stupid question and one big reason i want the one piece is just a small welder given to me by my dads friend, a lincoln weldpac 100 running a gasless flux core setup and i can not weld to save my life, so i wanna go the easy way and just have one piece.
Thanks!