Here is a breakdown of the pricing if you wanted
1/4 - $4.60+ per mtr (100mtr spool)
1/2 - $5.40+ per mtr (60mtr spool)
1" - $12.85+ per mtr (30mtr spool)
I got some prices from another place in 5mtr lengths at about double the prices above
eg - 1/4 - $9.20+per mtr (Multiples of 5 mtr lengths only)
Another thought was a product that meets the same specs as the Raychem called Raceline 150
Raceline 150 (American Brand)
1/4 - $4.75+ per mtr (50mtr spool)
1/2 - $7.55+ per mtr (50mtr spool)
1" - $14.45+ per mtr (30mtr spool)
Finally i settled on the HellermannTyton SE28 which is the same Mil Specs as the Raychem Dr-25 and similar prices but i can get it by the mtr.
Here is what i have worked out i needed with a fair bit of margin for error.