opinions please and help on my soon to be 1675.

[toph]

SO i have bought a GMT Master from 1964, picking it up in the next few days.
I have lusted after one for sooo long! Living in Australia things are far less common.
Here is the scenario.
I am buying it from a vintage watch collector and dealer who has had it and serviced it for over the last 20 years ( so that takes us back to 1990) and i get to pick it up and view it in person. So it is inl as good a condition as you could possibly get and been well looked after.

It has a matte dial with the big 24 hour hand and matching regular hands ( put on together i presume). The patina on all is very even. Now i know the is a replacment dial and hands but the dial says Swiss T<25 rather than 'swiss' like a service dial. ( anyone shed any light on that?) i am 99.99999 % sure this watch had a gloss dial and small 24 hour hand being from 1964 BUT the new dial and hands were probably put in in the 70/80's i reckon judging from appearance. This was probably common practice during a service) but any opinions are welcome
So what does one do? keep it the way it is as the dial and hands are matching for a 1675 but just in an older serialed case ( pre 66/67, when this Dial and hand configuartion was introduced) or ( i love the Matte dial) keep the matte dial and try to find a small GMT 24 hour hand?

Thanks for listening and what would you do?
cheers