Just curious, but what part are you refering to as a "bump stop" in the front suspension?

I think you are describing the block between the lower suspension arm & the spring which the factory calls a "Support Rubber - Front Spring" These may still be available under the part number 54220-18000
There was even an optional one for cars with 'cooler' [airconditioning] It is part number 54220-18001 but I don't like our chances.


Cuting this rubber is actually the best method of lowering the front as it retains full suspension movement without needing to cut the compression bump stop & you can restore the original ride height if necessary by simply fitting uncut rubbers.
Best of both worlds.

Great looking car by the way Chris. It reminds me of the green one that I did for my wife about 20 years ago, except that I didn't lower it.
I did, however, fit a built-up 1200 engine with mild cam, A10 pistons, KB10 exhaust & an import A14 carb with electric choke. [Ya know what bloody women are like.] It performed surprisingly well.
I used widened 12" wheels with some nice 12" Bridgestone rubber. I bought & chromed a set of standard 1200 Dogdish hubcaps & ran it all with some stainless 12" trim rings.
Baldy caps, trim rings & painted widened rims, ... it looked fabulous & so does yours.