600LT ~ Must spec this week ~ help needed please ~ URGENT!!!

[Jessica_Wabbit]

As per title.... so the dealer phones me completely out of the blue and launches on me that i must put in final spec this week ~ WTF???? He's sent me the brochure and price list to decide and i'm literally watching youtube vlogger vids to try to get to grips with it ... the stress is playing havoc with my ulcers.... any massive "do's" and "don't's" please guys? I haven't even seen the sodding car so im making decisions on pictures and it's all a pile of poo! ....He says Senna seats can't be ordered fyi ....
Victoria