Can't see him driving around on a bike. It's too pedestrian for his delusional high born tastes.
If he had enough money to buy an Air Transat flight to Europe, he probably had some money around to zip around on public transit the days before he left.
I suspect he had saved up some money, from some of his escort work in either Toronto or Montreal.
FWIW, I have seen no evidence supporting the notion that LRM created the kill video to "sell" to anyone for money, particularly since this idea originated with LRM himself. In his April and early May YouTube/Web postings creating a "buzz" about the video before it was made (he suggested the kill video was a "snuff" film made in "San Fransisco (sic)" and sold for a "lot of money". We know the "San Fransisco" (sic) part is false; I'm going to go out on a limb, and say the rest of these claims are false, like most of the ramblings in LRM's online sock puppet postings.