Ordered lifters from Amazon. Maybe not the typical place but they had hylift Johnson's for a decent price.
I am curious to hear your feedback when your shipment arrives and the lifters are in hand. I spent some time back in '15 looking into this topic:
Inliner's Engines Posting I found the new production lifters extremely heavy compared to stock and NOS after-market. The added weight seems counter productive to controlling the valves as RPM increases.
Personally, I would go for NOS after-market. They still show up regularly:
Ebay Sealed Power AT-887 lifters.