I upgraded from the HF 90amp 110v flux core unit to an Everlast iMig 140. Nice machine but takes some getting used to, getting the settings correct and all. I have a 60cf tank and if welding a bunch it doesn't last all that long. At $50 a filling it can get expensive if you only get 2 weeks out of the tank. Makes some nice welds though. As for HF Vulcan, I would wait that one out but they do look nice. Kicker is the Everlast is cheaper with a 3 year warranty.
As for Plasma cutter, I got this one a couple years ago but don't use it a ton. Have yet to use it on 220v because of no plug to do it. Really small portable unit.
Plasma Cutter 5AMP New CUT5D Inverter Dual Voltage 12 Month Warranty 217 Mode | eBay
This unit is pretty darn cheap and comes with the 220 plug which is cool. Only 2 reviews so far.
4 Amp Dual Voltage Air Plasma Cutter DC Inverter Cutting Machine - - Amazon.com