Oh, don't worry (and thanks for the offer!) -- I'll soon have Artix 7 powered board (or may be even something "beefier"). At least the "Dragon Board" with Artix 7 I will need for the video controller for my Unmatched: it has a PCIe connector & HDMI connector.
The only problem (for me) is the availability of suitable hardware to implement it :) The only FPGA board I got is GateMate EVB-A1.