That's a really cool modification you made to your guitar! It's great that you were able to find a solution to the tuning and string-saddle issues you were experiencing with the Floyd Rose bridge. The use of stacked nickels and a Jenga block is a creative way to achieve a hardtail setup, and it's awesome to hear that it has made the guitar enjoyable to play again. Adding locking tuners is a smart move too - it's always good to have that extra stability and precision in tuning. Sounds like you have a really unique and personalized instrument now.