Timing chain tensioner replacement and camshaft swap

[Tawfxr6t]

Hi all, it's looking like my timing chain tensioner isn't up to the task anymore (possibly due to the heavier Atomic timing chain?). Was curious as to whether it is possible to change the timing chain tensioner without removing the front timing cover on an FG turbo. Also looking to drop in some Kelford 218-B cams in at the same time, does this follow the same process as installing a set of stock cams or must some extra checks be done?