The tensioner bolt I have no problem with replacing, it's on order and expected in at our 'new' Fiat Pro garage. it's the bolts for idler pulley's I'm considering reusing as the replacement ones in SKF kit are not to original spec, and I'm not sure why new ones are supplied.
A little aside, previously I've dealt with three Fiat Pro garages and have found them to offer a very poor service. When realising I needed to order a new bolt from Fiat I looked up the nearest Fiat Pro, and they where no longer listed, so I looked up the second nearest, these have changed and now it's 'Northern Commercials' at Dunstable, the people there where very helpful with regard to sorting out parts, although they could offer no reason as to why Fiat (and others) supply new idler pulley bolts, and the only way they could get new idler pulley bolts was with a complete kit, and they even found a 'cheaper' Iveco kit which contained the idler pulley bolt, although this was still over £100.