to keep your layout with-in the size constraints you have, use a manual fastrack 036 switch (25 to 35 dollars used if you shop around). Replace a 036 curve from where ever in your layout keeps you with-in your space limitations, add a few straight or curves to obtain the desired siding configuration, presto - instant siding.
if your layout is 4 x 8, a logical place would be to parallel the 8 ft side (either one or both sides). If you had two switches, you could potentially connect both loops using the 8 ft side. this may require a fitter piece of track, but all sizes of shortened track are available from lionel.
if going the switch route, be sure to visit both the " for sale" or the "want to buy" listings posted on this forum for multiple options and usually very reasonable pricing. I don't have a dog in this fight, but I have found e-bay to be a pretty good source for current value of items by checking their completed listings file. many of the forum sponsors also price many of their items very competitively.
Steam Rules
"a country boy can survive!" (Bocephus, 1981)
