Dear Trolca,
Would it be possible for you to model some of these 2-8-2 or 2-8-0 tank engines from GWR. They have no seperate tender. They would look great hauling coal truck or passenger trains. especialy in the country. Further details are available here: http://www.greatwestern.org.uk/m_in_280_4200.htm and here http://www.greatwestern.org.uk/m_in_282.htm
cheers Wol