OK, here's what I've done. I bought 2 used stands for the front area, linked by chain to prevent any side-slip; placed 3 sets of blocks under the keel; and stabilized the stern area with PT 2X5 wedged under the gunwale. These I further secured with 2 1X4 strapping, again to prevent slippage of the planks. Shrink over the cabin top. We'll insert a zip door on the port side of the shrink this weekend so I can work inside in the off-season. Signed up for a CPS electrics course for November (4 weekly evenings).
FYI the strapping is ahead of the bow block, not on top of it - the pic is deceiving in that regard.