building seat brackets

[Surtur]

Hey guys I have some APC bucket racing seats (actually pretty nice for 175$) and i want to put them in my 89 4x4 truck (xtd cab if it makes a diff) right now it has the 2 1/2 seats the ones with the mid seat but not a bench, So what i need to do is build a cheap seat bracket and was wondering if anyone had some messurments for doing this i would like to make it out of tubing what size is best (not to big and not to weak) i would like to make it a one piece bracket were both seats are mounted on one big bracket i hope you get what i am saying.

anyone have built something like this ?
what is the best tubing to use and for the flat parts what guage steel should be used (were the seats bolt to)

any websites or anything would be great thnx.

[KToy]

do any bolt holes line up. i would say 1x1 square tube with .120 wall or like 1/4 thick should be plenty.