sorry to hear about your loss... there are a number of reliable kits on the market. a few are (in no particular order) DASA, FST, AMR, MUZZY, and Benchmark Performance. you will also get a hundred different opinions on whether you should go with the 840 kit or the standard bore kit. alot of the "west coast" guys ride in the deep sand of the dunes, where the 840 kit really shines. the trail type riding of the "midwest" or "east coast" guys really like the standard bore kit. the 840 will cost you a little more because of the cylinder plating that has to be done. both kits are able to be installed in your garage with some mechanical skills and the teryx manual... good luck!
08 LE, DASA 840, Muzzys, CDI, Open Filter Carb setup, VFJ Stage 3, XMF LT w / WER shocks, XMF 2 seat radius cage, XMF bed delete kit and bumpers, Lowrance Baja 540c GPS, HID's, 14" MSA MCX tires on black MSA Diesels, Twisted Stitch Agressors w / XMF seat bases, and a whole bunch of other shit!