Interco has Swamplites in a 29.5( actually height is around 28.5) not sure how they would work or hold up in the rocks though... Havent ran them on rocks yet..also I hear they wear fast when ran on blacktop..soft compound..which is good and bad..they are bias ply..and have some vibe at speed...you sold yet? They do have 1.5" lugs and I can climb up trees with them no problems, also climed over a stone terraced wall steep enough my buddy watching thought i was going to flip over backwards lol. So far I like them..I think they would work well for rocks traction wise...just can't say whether they'd hold up..
I'm thinking about running the Maxxis Zillas on the msa diesel 14inch chrome wheel in a 30inc they look like a good all around tire. Got a price of 1200 for all mounted with lug nuts don't think that's a bad price