Doug,
A consideration: I'm such a midget at 5'1" and 110#, also, with a shorter reach, that my numbers don't apply. That said here are some considerations:
First, I presume that you are going to use this as a utility table when not a go-bar deck, so make the height one that you are very comfortable working at.
Second, you need to measure the height of whatever work you'll be putting in there, or make the table height changeable.
Third, add on the height between the top of the table + @work thickness+ distance to your head height plus about 2" to prevent head banging.
Problems with where to lay the supply rods while trying to juggle radius disks, glue, braces, etc. lead me to suggest that you have vertical storage sleeves, or drawers or pull-out tool tops, something so you don't find yourself needing a separate tool trolley. If it's drawers, then the rods will be very handy and can be stored permanently there. That plus a pull-out work shelf below the drawer, would be very handy. I would put something rough (like sandpaper or canvas) glued on the bottom of the go-bar top piece to give the rods a firm grip for ease of handling when setting up. You will find yourself having to use some at angles at times; it gets very busy in there sometimes and you don't want those rods to have a tenuous top attachment. That means that in order to get the right tension on gluing braces, you should probably have some rods a bit longer--but at any rate, that's the most experimental part of the setup since the rods will always be bent. I can't predict the amount of deflection since I don't know the ultimate height of your working space or the relative stiffness of your rods. I would guess they should deflect about 3-4" from plum.
It just dawned on me (du-uh) to check with Stew-Mac--since they sell a Go-Bar Deck. Their rods are only 24" long; their whole rig is diagrammed on this page:
Go-bar Clamping Deck
www.stewmac.com
Hope this helps.