My recommendation would be to not do it. Gonna degrade the battery and likely other components incredibly quickly with all the heat you generate. If you insist on doing this, look for something with a built in fan to mitigate some of the problem.
stick with the big brands. Samsung has nice ones that have built in fans that are quiet. if you are running that setup it will get hot. another option would be the dex pad, will fully integrate and charge at the same time.