Just improvise.....
went to local generic ATV/Snowmobil part supplier and bought straps from (i think it was) brp widetrack equivalent made by Kimpex. On the desk, they were too long & wide but wanted to cut & hole myself and get better granularity in hole resolution. ..under 10 buck a piece.... but this was 3 years ago & 15000 km.
..yeap, still in & good.