If the alarm is £400 fitted then your up to £1,150. I would imagine you would need to spend between £1200 to £1800 to get a reasonable exc - still would go with two bikes! But that 690R is one cool bikeI have been offered brand new 690r for £6250.00 otr but only offered £5500.00 for my 950smr.
My 950smr has only done 1800miles and is mint condition paid a lot more than that for it.
also will have to have alarm fitted to the 690r as i had trouble insuring the 950 without one.