This model has 1/10 scale and based on 1/18 chassis from Wltoys buggy. I have used Wltoys K929B, but there is possible to use [WLtoys A959B](https://www.banggood.com/WLtoys-A959-B-118-4WD-Buggy-Off-Road-RC-Car-70kmh-p-1044138.html?rmmds=search&cur_warehouse=CN&p=J7171269288462016106&custlinkid=616409) or cheaper [Wltoys A959](https://www.banggood.com/Wltoys-A959-Rc-Car-118-2_4Gh-4WD-Off-Road-Buggy-p-916961.html?rmmds=search&ID=224&cur_warehouse=CN&p=J7171269288462016106&custlinkid=616409), also I have [MZ GS1004 buggy](https://www.banggood.com/MZ-GS1004-118-2_4G-4WD-390-Brushed-Rc-Car-55kmh-High-Speed-Drift-Buggy-Off-road-Truck-RTR-Toy-p-1325601.html?rmmds=myorder&ID=223&cur_warehouse=CN&p=J7171269288462016106&custlinkid=616409) which very similar with Wltoys.
Original chassis cutted in the middle and extended by 8 cm, need to drill some 3 mm holes and insert screws M3. Also need to cut central driveshaft, I fixed extend shaft by superglue and it works fine.
Shock's mounts was changed to horizontal bar for increasing ground clearance. Because the new body has more weight, I have added preload spacers on front shocks.
Body mounted on the chassis by improvised soldered frame from copper wire.
https://www.youtube.com/watch?v=R2s3aSYsLCg
https://www.youtube.com/watch?v=1YR_IJ8EXOw