I am thinking of getting a tablet computer

I simply don't have the money, though. I'm not exactly sure what I'm looking for but I know I'd need a tablet with a large screen and will display very large print for reading at a glance or referencing, and support .pdf files. I think they cost over 100 dollars and I really am struggling in debt payments especially during the lean months of summer so I think I'll wait until next year but at least I can do is do some research. In the meantime my Rabbi is doing up a Siddur book done in large print so that I can go along with the liturgy with the rest of the congregation, since I'll never be able to see the overhead even with my telecopic aid, the print is just too small and the background is kind of a dark pink colour so there's absolutely no way I'll be able to read the hebrew transliteration at all. I don't mind paying for the cost, since it's a small congregation, but still I would have preferred the tablet so I can go completely paperless (I'm kinda of a tree hugger lol). Anyone can recommend someone suitable for a visually impaired person? Just some ideas I can think about over this year and to have an idea where to start looking, what to look for, and the price so I can start saving up on? Thanks in advance.