- WW1 or pre-WW1 trucks
- non-british/US trucks of the 20ies and 30ies (preferably german or french)
got any names of manufacturers or images/links?
I'm quite interested in doing german/french stuff as, as you say yourself, there doesn't appear to be much of it about - at least not in the English language sites/stores.
citroen french trucks presumably for one....?

This is an Opel "Regellastwagen" from the technical museum in Sinsheim between Heidelberg and Heilbronn. The German Reich (imperial) sponsored buying lorries with a certain degree of unification. In exchange, the government got the right to require these trucks in case of war.
What you can't see is that it's got a chain drive like a motorbike.
Several years ago a collector in our area had a NAG Truck (pre-WW1), but I haven't seen it fopr years and he sold much of his collection by now, so I can't tell if he still owns it.
Another source for trucks should be Lewis Milestones 'All quiet on the western front". Though I think these will be american ones.
My father has an old book from around 1950 with technical details for trucks of that time, amongst them some which predate WW2.
Here are some names with year of going into production:
Borgward
- L2000S 1,5t - 1939-1942
- 3tonner - 1938-1941
Büssing-NAG
- Burglöwe 25 + 30 (2,5 + 3t) - 1938+
- 650 (6t) - 1937-39
Daimler-Benz
- L2000/L2500 (2t/2,5t) - 1936-40
- L3000 (3,3t) - 1937-41
- L3750 (4t) - 1936-41
- L6500 (7t) - 1938-40
Faun
- L600 D567 (6,5t) - 1938-40
- L900 D567 (8,8t) - 1938-39 (9,6m length!)
Ford
- BB LKW (2,5t) 1932-39
Henschel
- 25T1, 30T1 + 30T2 (2,5t / 3t) - 1936-39
- 40S1+2 (4,7t) - 1937-45
- 5G1, 5G2, 5G3 (5,5t) - 1933-39
- 33G1 (3,5t) - 1938-43
- 6J1. 6J2, 6J3 (6,1t/5,9t/5,7t) - 1934-42
- 36W3 (9t) - 1936-40 (10,2m length!)
KHD (Klöckner-Humboldt-Deutz) Magirus (also Magirus-Deutz)
- L30a (3t) - 1936-40
- L235 (4,1t) - 1938-40
- L145 (4,5t) - 1938-40
Krupp (Südwerke)
- L2,5H242 (2,5t) - 1932-33
- L2H242 (2t) - 1935-37
- L3,5M242 (3,5t) - 1937-38
- L4M262 (4t) - 1936-40
- LD,5M222 (3,5t) - 19837-38
- L6,5N242 (6,5t) - 1937-40
Opel
- Blitz 1t, 2t, 3z - 1934 onwards
Phänomen
- Granit 25 (1,5t) 1929-39
Saurer
- BT4500 or 4BTDVS (5,5t) - 1938-44
VOMAG
- 3LR443 (3,5t) - 1936-41
- 5LR44B (5t) - 1936-40
- 6LR652 (6,5t) - 1938-40
Some more companies who made trucks pre WW2:
GERMANY
Büssing
NAG (from 1928 onwards Büssing-NAG)
MAN
FRANCE
Renault
Citroen
Saviem
Berliet