Congrats for the V10

there are slightly differences for those variants mentioned
mainly in term of appearance and safety features
in term of performance, there are the same thing for all three variants

for 2010 onwards there will be only Persona Elegance (PE) offered by Proton unless you want to opt for previous version (used car)

for RM2.5k you definitely can have PE and regarding the payment plan will be base on the financing mechanism that you opt for the hire-purchase

glad this little information can give you the idea

if you already confirm that you will be a teacher (provided it is a government teacher) that you shouldn't be any problem, just you need to wait a little while for the down-payment (10%) and to opt for 5/7/9 years.