David N8DAH from Kit-projects is marketing Gordon Gibby’s outboard relay mod as a kitset or for $5 more as a built-up board. This includes the circuit board, and all parts (including relays, diodes, inductors and caps).
Cost might seem high but David assures us he will be using quality parts.
The pre-orders were snapped up pretty quickly, but new stock will be coming shortly once the pre-orders have been shipped.
https://shop.kit-projects.com/index.php?route=product/product&path=59&product_id=119