sorry i haven't replied yet, i've been busy/away.
I would still get this over any other complete bike at the moment. Especially for you as you are a big lad and this does have a 21"tt which you'll no doubt be thankful of.
The spec on this is unreal for the price. (41thermal lifetime guarentee bars and cranks, together, costing £187!!!!) Then the evolver brake @ £25, the rims add up to a modest £70ish.
I honestly do not know how they can sell this bike for this price. To build it alone would cost more than this asking price, and many of the parts that break on a complete bike are actually top of the range aftermartket 'buy alone' choices for serious riders (parts named above)
I'd definately buy this bike olly.
john