Still having some heat problems, but with a new hotend on the way that will probably be history soon!
I am also currently working on a better printbed, the top layer is 2mm aluminum with cutouts to make the print-area X & Y as big as possible. Underneath there is a PCB Heatbed MKII, which will be mounted on top of a 4mm MDF plate and the most minimalistic carriage underneath that MDF that is possible.
Some machine parts are very badly warped (the kit I bought online didn't come in such good shape) but I have been trying to make it as stable as possible and am now improving my machine wich my own added improvements. Both from Thingiverse and by myself.
Thanks community! :)