Cockpit and wheels.

Try this place. It is wear I found my cockpit and cabin intereior detail sets and my crewmembers for the Blackhawk that I am working on now (well sort of working on).

S q u a d r o n . c o m - Search

 

Infact I just did a quick search of the site to see what I could find (only for the Wildcat) and this is what I found.

Cockpit detail set
Landing Flap Detail set

S q u a d r o n . c o m - Cookie

 

What the hell I went ahead and looked up your P-40 and found a landing gear set for you.

S q u a d r o n . c o m - Cookie

 

Hi !!!

As far as P-40 is concerned,there is a link to a nice article about the model assembling:
P-40B by Jeffrey Oliveira (Trumpeter 1/32)

There is the link to the site where you can find the resin kits (cockpit and wheels) used by the modeler in the article above.
Jerry Rutman's product list

There are two pics of the manual assembling for the Czech firm "CMK" resin cockpit (No.5005) and the link to CMK site.
.:CMK:.

 

Tere is a link to a site where you can find some of accessories for USA planes.
The names of firms could help you to find you need.

ACESSORIES FOR AMERICAN AIRCRAFT MODELS IN 1:32 SCALE

There some of the accessories from the site:

Grumman F-4F-4 Eduard 32109 Cockpit detaling, for Trumpeters Wildcat
Grumman F-4F-4 Verlinden 2073 Cockpit and gunbays, for Trumpeter Wildcat
Grumman F-4F-4 Cutting Edge Modelwork 32006 wheels,weighted, for F4F Wildcat

Curtiss P-40B Lone Star Models LSM Cockpit detail set.
Curtiss P-36 / Hawk 75 or P-40B Cutting Edge 32137 Cockpit super detail set with moulded on US Style seat belts.
Curtiss P-36 / Hawk 75 or P-40B Cutting Edge 32145 Cockpit super detail set with poseable on US Style seat belts.

I hope it would be helpful.

 

You are welcomw mate.