It may cost a bit but another idea some people I know use is a smaller case / mini-atx depending on yuor mobo. And thern just have main hd and components in it for the journey. Actualy thats prolly a stupid idea as you would need new pc parts too 
Only thought of it cause some people I know at lans have one of those wheely suitcases and fit a tft and a case in it. Might be able to do that with a normal tower actually.

Only thought of it cause some people I know at lans have one of those wheely suitcases and fit a tft and a case in it. Might be able to do that with a normal tower actually.