The Search For Enlightenment

As a Nichiren novice I have not been given my Gohonzon, but I have a few questions about it.

I know the history of it, how Nichiren inscribed the characters to encapsulate the Lotus Sutra and the other elements of fundamental respect, starting in his exile in Sado in 1271 and finishing the Di-Gohonzon on 12th October 1279.

For practicing Nichiren Buddhists, it their focus, they sit facing the Gohonzon during Gongyo.

I have no such focus, so I sit facing a blank wall, or behind the steering wheel of my car if I’m chanting on my way to or from work, but is that wrong, I don’t feel it is.

So my questions are:

Is it possible to practice correctly without a Gohonzon. I don’t feel I am wasting my energies, but others may tell me differently and …

Can it be right, that there are Gohonzons for sale on eBay? Why would anyone sell their Gohonzon once it has been presented?

You can of course buy crosses and other religious symbols on eBay, so I guess the answer is yes.