For larger, firmer produce like pineapple, apple, cucumbers, etc., a centrifugal unit is perfectly fine and tends to be a bit easier to clean. Masticating juicers will handle just about anything including, berries, spinach, kale, etc.
For orgeat, we need a blender or food processor. A 4-cup Cuisinart FP can be had for $50. A Ninja blender can be had for $90.
A brand new centrifugal juicer, suitable for home use, can be had for as little as $65. A two-speed unit is most versatile. Ultrean and Hamilton Beach both make affordable models. Breville makes excellent units but start at $180. We use Brevilles in our programs.
Masticating juicers can be had for <$100, like this Omega H3000D. Ninja and Cuisinart both make decent, affordable models. Our juice bar uses a higher end Omega and it only struggles a bit with wheatgrass.
You can probably find a used centrifugal on EBAY for $50-ish and a masticator for $80-ish. I suppose it all depends on how important a new, warrantied model is to you and whether new is worth an extra $20 or so.
I got this Ninja Professional blender from amazon and it is amazing! None of my purées are ever chunky.
And it’s $45 for prime day!
https://www.amazon.com/dp/B00NGV4506?ref=ppx_pop_mob_ap_share
combine with this and you'll be able to fit more