I have a child's wooden train set for sale. Not the table, but all the wooden train tracks with tunnels and buildings and cranes, etc. It is a combination of Thomas parts added on to what was originally an imaginarium train set like the one seen in the picture here.
There are many, many trains included with the set including Thomas, James, Percy, and all the familiar trains from the children's show and also add-ons like the aquarium car set, the zoo car, the troublesome trucks, etc.. In all there are probably 30 or more trains and add-ons. Also have the large Cranky the Crane Thomas accessory and it has the roundhouse and buildings as pictured here. At one point I had bought a small Thomas set as well and added in the parts from it. I can't remember what the set was called but it has a bridge, ramp and some additional track pieces. There is enough track pieces included to do an extremely detailed and complex track on the typical type of board you see on these train tables with parts left over. There's also accessories like trees, stop signs, people (including Sir Topham Hat), etc...
This is the perfect opportunity to kit your son's train set on the cheap! Just buy (or even make) a cheap train table and board and with the additions found in this set you will be completely set up and ready to go. All of these trains were between $15 and $25 each but it seems silly to charge as much as the math would indicate. I'd like to hear offers on the works, just respond to this ad with an offer you think is reasonable. Thanks for looking.