The postage was 20 Euros for outside Poland shipment, so it would make one kit quite expensive - that's my excuse for getting three. Not sure what the Dollar/Euro/Pound exchange rate works out at but I guess the US price is about equivalent to the UK price for the kits.
I don't want to post any photos of pages of the books that make up the kits in case it infringes any copyrights (sorry Roger), but there are views of what you get on the Modelik website. The kits are quite complete, about the only thing missing on the GLS30 are the drive chains from the gearbox to the axles and the Lxd2 has a complete driveshaft/gearbox system underneath
When I get time I have a feeling that the GLS30 may get put together as Modelik intend complete with the engine under the bonnet, and a second one may be put together in parallel using styrene as I don't think that thin card would stand up to much abuse on a layout. Don't hold your breath waiting for progress though - you may turn purple before anything happens