Hi mate and welcome to this interesting end of town!
Ok - boiler pressure is way to high - aim for .9bar - 1.1 bar to get going. You will probably find thats why your getting so much steam out of the hot water wand. MAKE SURE MACHINE IS OFF AND DISCONNECTED FROM THE WALL - then use the adjustment screw in on the pressurstat box marked with the CE symbol in photo 2 above on the left hand side of the photo. You should get access without removing the cover, but if you have to its only a screw. You will see a neg and pos symbol on the box. I would heat her up before turning off and doing the job, so that you can then plug her in and hit get her back up to temp very quickly. Then if the pressurstat is clicking off to low etc you can change things by a quick turn off plug out and adjusting.
The seal is well stuffed - Pedro at Coffeeparts down south (site sponsor have a look to the left of screen) will help you with parts - wont be expensive to replace. Showerscreen looks good, but you can soak it in Caffetto that he also sells to thoroughly clean.
Post back with the results.