OK, 220 miles in and all is well.
It has now been treated to a dark grey Ultegra crank from
eBay, saved a few grams and it looks great, the ride is brilliant, stiff but comfortable, its a small frame but without the mudguards there is no toe overlap.
So:
Frame cost, £350 including seatpost, seatpost clamp, shipping and import duties
2 weeks to arrive.
No problems with the build at all, apart from the derailleur hanger needed re-aligning.
All the drillings were ok for mudguards, except the front forks which just had a hole right through, not a problem just needed a longer bolt to go all the way through with a nut on the other side.
I would recommend a BSA bottom shell if you are thinking of using Shimano, the BB's are dirt cheap and so simple to replace.
Flixxi was the supplier on Aliexpress, the box was marked up with a value of $100 so unless it gets opened then the import duty/fees are not too bad.