Lowering the rear will be the easiest option, since it could really be done with just about anything that's fairly strong. An aluminum block would work, but you'd have to check it from time to time to make sure that the u-bolts stay tight.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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