First, do a few drop tests. See how the old thing holds up.
Second, figure out what speed and weapons you want. See what changes you can make to it. Try the trial Mechs. Get some ideas about what will and won't fit your playstyle.
Third, try to make a build that works.
If all else fails, you may have to part with your Gauss Rifle Spider 5K and trade it for a different build.
Also, when planning on a new Mech or build, make it on Smurfy's Mechlab first. It avoids wasting C-Bills. One of the best things you'll do in the long run is to find weapons you like. Then you'll be able to Smurfy a build to your personal strong points.
Edited by DavidHurricane, 03 January 2015 - 03:49 AM.