Heres a little information about links for those building custom chassis/wheelbases. These link sets are currently available:

SA0011 (OH35P01):
1x OHMLB01218 (18mm)
1x OHMLB01235 (35mm)
4x OHMLB01225 (25mm)
4x OHMLB01240 (40mm)

SA0014 (OH35P01 for MA2):
4x OHMLB01227 (27.5mm)

SA0023 (OH35A01):
5x OHMLB01215 (15mm)
1x OHMLB01228 (28mm)
4x OHMLB01226 (26mm)

SA0033 (OH32A02/OH32A03)
1x OHMLB01215 (15mm)
1x OHMLB01228 (28mm)
4x OHMLB01220 (20mm)
4x OHMLB01230 (30mm)

SA0059 (OH32P02)
2x OHMLB01244 (44mm)
2x OHMLB01235 (35mm)

SA0061 (OH32X01)
1x OHMLB01218 (18mm)
1x OHMLB01235 (35mm)
4x OHMLB01220 (20mm)
4x OHMLB01232 (32mm)

TA0057 (OH32M01)
1x OHMLB01244 (44mm)
2x OHMLB01220 (20mm)

SA0103(OH32M02)
1x OHMLB01244 (44mm)
2x OHMLB01220 (20mm)
4x OHMLB01212 (12mm)

SA0110 (OH32X02)
2x OHMLB01235 (35mm)
2x OHMLB01215 (15mm)
2x OHMLB01212 (12mm)
2x OHMLB01206 (6mm)

If you need longer links, or a length not available in the above list you could always cut a link into two halves and glue them into a alloy or brass tube to achieve the length required. Tubing can also be used to sleeve uncut links to add rigidity, give a beefier look and help the truck slide over rocks.

Links are 1.2mm diameter with M1.2 thread. thin walled 2mm or 1/16″ tube will match the external diameter of the Orlandoo rod ends and will be a tight fit over the cut link. Some tubing may need carefully drilling out with a 1.2mm drill.