Yes, the overlapping jib does present a problem, but not impossible, for a self tending jib sheet. It would be easiest to buy a used jib made for a smaller boat that did not overlap the mast. If it also had a low clew that would help. However, you don't have to have a jib boom, but the trade-off is the noise from the sheet rattling on deck when the jib luffs.
The newest technology for jib booms is the Hoyt Jib Boom (seen here:
http://www.harbor20.org/. Gary Hoyt continues to innovate and design useful stuff for sailboats, my favorite is the Hoyt Gunmount that attaches a spinnaker pole in a sleeve with the sleeve attached to a sturdy bow pulpit. It allows a standard spinnaker to be launched and carried under complete control since both sheets go through the 2 ends of the pole. The Hoyt Jib Boom attaches thru the foredeck about 18 inches aft of the stem. The boom has bushings at foredeck level, rises about a foot high then angles back toward the mast. The geometry of the offset causes the jib to present a more curved planview (birds eye view) as the jib sheet is let out.
But, you can use a 'lapper' jib for self tending, though a bow pulpit will probably be in the way. The idea is to mount both the clew and the tack to a boom. Mount the forestay to the front of the boom (or use the halyard). Now push the sail forward so there is no overlap. At the point on the boom that is over the stem fitting attach the boom to the stem. Weird looking? Yes, but it works well and is very close winded! I just saw a pic of one of these rigs- I'll post it if I can remember where!