I was at Lowes the other day, just walking around, and I came across something that may be of interest to you. They sell these pre made steel fence sections, one of the sizes they have fits between the luggage rails on an xj perfect (44 x 68). Now it may not be a true safari rack because it has no sides, but you could strap anything on to it once mounted, and it would be very low profile, and cheap at only $74, plus its already painted. Ill post some pics as soon as I figure ot how to mount it...