Nice Job! This has been a 2 month project of mine, so it is really great to see it up and running on a real Mac 128K.

FYI: Safari is stalling about 3/4 way through that page and keeping the connection open.  If I use TELNET, it looks correct, except I do not see the HTTP header (which may be the problem with Safari).

You should consider putting a fan on it it you are running it full time, like a Kensington System Saver or a Fanny Mac.