If you're going to go with hydraulic tensioners, you'll have to upgrade the cam plate, and if you upgrade the cam plate, you might as well throw in the SE high-volume oil pump. My 2012 103 went from 32psi of oil pressure at 3000rpm hot, to 48psi, and from practically zero at hot idle to 15psi. Oil can't lubricate or cool if it's not circulating. You might want to look at the Zipper's dual-piston cam chain tensioners also. If you're building for reliability, it won't hurt to improve the oiling system and go with a better tensioner while you're in there. As far as cams go, you could do a lot better than an SE, as their smaller cams tend to favor the EPA over anything else. Do a search for "Twin-Cam Camshaft Comparator" and check out the options.