Good luck trying to find a score to buy. I had to get my study score via eBay, back when there seemed to be many such items for sale. Oxford University Press in the UK only lists scores and parts for rental. The situation is even worse for RVW's "Job", a fabulously scored piece that used to have a study score available. Been looking for a copy of that for years.
Rant: OUP is miserably lax in keeping useful stuff in print, far worse than other university presses that publish music (e.g. the full score of Brown's edition of Haydn's Creation, which I'd nominate for IMSLP posting as soon as it becomes legal to do so).