Wooden worktop and upstand. So many questions....

[buster]

Hi buster, and welcome to the forum.

1 - you usually get a metal strip with the appliance, but just use a few wide strips of foil tape on the under side.
2 - if you get the tops at 650mm wide, - there's plenty out there, you can bring the units off the wall so it gives you more width. Personally I think it looks better with the upstands going all the way across.
3 - butt join, run the router along the two edges first so you get a good one. Take the sharpe edges off either with a chamfer or small round over bit. Bolt up as laminate, lots of debate on here how you  glue the joint up. We've used wood glue, never had any issues.
4 - you can get tops 4mtrs long .... www.woodworktops.com for one.

Great , thanks for such a full answer .

Regarding 2 & 4 , To be clear I already have all the new units and worktop , its 616mm wide worktop , and what I meant was I cant get 4m from the supplier ( howdens ) that I've already bought from. So with that new info what do you think?? Should I maybe have the hob fitted a little nearer the front ? Do you know what the regulation clearance has to be?
From the start I planned to just have tiles , but since its been delivered it got me wondering that it would look really good as long as I dont have to have a break in it for the hob.


Stud wall going up tomorrow, then moving a radiator and fitting isolators to the tap feed pipes ( corner cutting when the house was built meant the only isolator in the house is in the loft on the tanks ) 
Then its rip out the old kitchen and in with the new over the following week.