Vaccinating for RHDV2, in my opinion, is a must. Regardless of how unlikely it is for a rabbit to get it wherever they are located, the reality is once the rabbit gets it, the rabbit will pass and there is no action to prevent. Additionally, that rabbit, for a brief time, is also then a hazard for other rabbits it may come in contact with, making a very contagious and robust virus even more risky to other rabbits. Cases of RHDV2 are only growing, and geographically, it is naturally going to continue spreading in the US (it is almost in all states now), so I would not wait.
RE: the timothy and alfalfa, as long as the rabbit has alfalfa-based pellets, it can be fine to be on a non-alfalfa hay at the same time.
RE: the idea of “unlimited” pellets, when people say unlimited, they typically don’t actually mean that. You do not want a rabbit gorging with no limitations on yummy pellets. It’s more so you want to ensure there are plenty of pellets to match this period of rapid growth and development. For both sanitation and diet reasons, you do not want to leave a huge bowl of pellets out, but often people may provide 1-2cups in the morning and offer more in the evening, as an example.
RE: veggies– yes, you need to wait a few months. A young rabbit’s GI system is not prepared to break down complex veggie structure yet.
Yes, you should take your rabbit for a check-up soon. It is important to establish a relationship at a vet and for the vet to get an idea of the rabbit’s baseline and overall health.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.