Advice on wiring needs please

[Bensox]

I'm building a large workshop shed as monthly budget allows, and am at the stage of insulating and roofing.
I will be using an electrician finally, but at this stage want to put the correct wiring through the roof and wall voids. Kind of 1st fix but without connecting anything up.
Would anyone help me with a shopping list (wiring needs only) and tips to make it easier for my future electrician?
Final vision:
power in from one roof corner.
two-way switches on two doors.
ceiling lights (maybe 2 circuits, main light and spots).
outside spots (dusk to dawn, with overide).
outside flood light.
sockets for power tools, freezers etc.
infrared heater.

As I said, all I want to do is lay the correct wires through the roof and wall build to avoid having to cut and chase when I finally can commission the sparky.
Thanks for reading, any tips appreciated!

 

[Murdochcat]

No spark will commission a site they haven’t been involved with from the start

 

[Bensox]

No spark will commission a site they haven’t been involved with from the start

Yes I get that nobody wants to be held responsible for what they can't verify. Its just I can't afford an electrician yet but want to roof before we get much more rain. Its better if I work bottom up, lining and insulating then the roof sheets.
I feel bad getting someone in to quote/advise at this stage as it'll be new year before i can afford to get the work done.
So I thought to run continuous wires through, looping it where a light or socket will go. By testing the wire end to end, and photos before boarding over, I thought the electrician could be sure what they are working with

 

[flameport]

Kind of 1st fix but without connecting anything up.

First fix does not involve connecting anything.

. By testing the wire end to end, and photos before boarding over, I thought the electrician could be sure what they are working with

Perhaps - but only if you have already discussed such things and agreed it in advance with the electrician.

Shoving a load of wiring in and then calling someone to connect the ends will result in problems.