Newbie Builder

hi all, I have just got a 2002 trophy 1200 which is in a sorry state, first thing i want to do is change the forks as the seals are gone and the chrome is flaky! So questions are there any compatible fork out there? 43mm tubes are standard, was thinking of 955 forks but they are 45mm so yoke change too ? will 955 stem fit the trophy frame ? if i were to use the 955 forks should i keep the 955 wheel too ? Oh so many questions for a newbie to ping at you !!!!! Any pointers will be helpful...... Was a lot easier with T140 and T 160 parts ;-)
Clive