As a "regular" blocknet trader I can answer second part of your questions. I am running few unencrypted core wallets on some old notebook with linux. It has only wallets and blockDX installed. With good SSD the performance is acceptable. You need to have all wallets synced on same machine with blocknet (a lot of time, if you start from beginning) and configure blockDX with all that wallets. Especially if you add new, you need to restart every wallet, that is annoying. But! It is working. Devs promising, that you do not need to install core wallets if you use some services (service nodes??), but I do not know any or how to connect to them. Most important for me IT IS FUCKING WORKING! No more KYC, AML, exchange SCAM or trust to someone else. I just hope, blocknet does not have any backdoors or critical bugs