Yes philiphat,kt running gear,ill be using parts sprues from the kt ,jagdpanther ,and panther for external detail,as for the hatches ,muas45, i countacted chris late last night because you sparked my curiosity about the panther a hathes,the answer he gave me was very long and detailed and made perfect sense to me,i will try to to tell you as best as i can.the panther 2 that i am building was an very early design ,designed before the panther a actually went into production ,so certain apsects would be the same as the panther a ,such as the driver and radio operators hatches, I beilieve the panther 2 at fort knox was built when the panther g went into production,so by that time certain revisions had been made,so in affect that panther 2 is closer to a mid production,and the panther 2 that i am currently building would be the initial concept,wich when you think about it makes perfect sense .