What's wrong with what you've got now?
I've read (no first-hand experience) that commercial tube bumpers are usually very thin and deform easily, thus are not worth putting on a offroaded Jeep. In that case, pull 'em off, paint and sell them. But if they're good strong pieces, and you like the look, keep it.
'91 Frankenheep YJ. 4.0, 4" BDS, Richmond 8.8, Titan 12k, 35" KM2's, rust.
'88 YJ, 4.2/4.0 head, +4½" & shackles, BFG 33's (sold)