hunthick
As far as combo's go you do not have a lot of opions , none involve the 204 or 7-08 , what you will have to do is get a rifle and sent the frame to H&R to have another barrel fitted or buy a used barrel and fit it yourself . if you send to H&R it will take about 6 to 8 weeks to get back maybe longer depending on what barrels they have in stock at the time .
Some of the superlites do not shoot as well as we would like , but can be be made to shoot with a little work . i have one in 243 that is just starting to come around . if it were me , i would find a 223 and send the frame in for a 7-08 barrel , since she will have a 22LR this should cover the basics , for what its worth , the diffrence between the standard and lite is so little that i would go with the standard barrels in what ever one you chose .
stimpy