Sad to hear. You - by any chance - don't have any dev experience for plan 9 apps itself do you? Would be interesting to find out how hard 'ui' apps are to build. Incorporating webkit in a 'custom browser' might not be easy; but not undoable.
Yes, it's pretty much undoable. You'd have to compile webkit for Plan 9, which requires a C++ compiler, which Plan 9 doesn't have. There are some gcc ports, but I don't know how well they work. There are also probably a ton of dependencies. So a modern webbrowser is not really feasible.
