My advice, drive them both before you make a choice. 2.5na is great off road and for pottering around lanes, but crap at higher speeds, especially when going up any kind if incline.
The 2.5 n/a would be a far more practical choice in the event of a nuclear apocalypse. On the other hand, the TD5 is a somewhat more refined, smooth and efficient powerplant.
Once again guys thanks for the advice,ill be popping to Withams in around 3 weeks time to have a look about,& hopefully find a nice 110,will agree with you there about Blanchards like....They have loads of spare parts!...I even picked up an old work ticket for 3.95!!!..il keep up the posts about how i get on & ill suss this photo bucket out & post some pictures as soon as i can of what i get.Many thanks Guys!