Experiment, then buy quality
mpukas....There are so many choices out there, and it is hard to decide.
Especially on a limited budget.
There's no hurry, so I suggest that you experiment with different sizes,
different grinds, and different manufacturers. Find one combination that
you like, and then buy the highest quality you can in that category.
You can always sell the ones that you don't particularly care for. It's a hassle,
but it's a good education.
On the other hand, you probably can't go wrong with purchasing a "known"
good shaver in good condition. It doesn't have to be new.
Just get it professionally honed, and you won't regret the additional expense.
You don't need a huge collection...a few really nice ones is good enough.
Of course, a LOT of really nice ones is even better! ;)
Good luck!
Paul