Thank you!Split-Jaw used to make just what you are looking for in custom lengths. Laid on one to two feet of gravel/paver base it would be perfect. Too bad they're out of business. I just got back from the pub so can't give you a pic but will tomorrow (actually later today). It might give you some ideas. I've got a 1.2m piece in the garage. Maybe you could recreate something similar with a 1.5m piece of flex track and casting resin. Pics to follow. By the way, nice Kubota!
That looks just about perfect.Here are the pics of the Split-Jaw product. It's made from 5/8" thick Black PVC. It's a well made very sturdy product. I don't know if anybody took over their operation.
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Looking back in the cold light of day Dan's idea in post#7 is close to this.