Rubber power models are the biggest bang for your buck in model aviation. Limitless number of kits and designs out there. Current production stuff plus lots of old kits, plans and pattern of old kits also. I did a Comet Taylorcraft from the old dollar kit series with the 54" wingspan once and will do another some day. $ loops of SIG rubber, and scratch built larger prop, and plug in wings help with transport and storage. On a calm evening, it would do a minute plus and never get higher than 50 or 60 feet. Not much in the way of special equipment is needed if you can make stuff yourself. If not, sell off some engines and that should get you supplied with some winders, stooges and such. Don't limit yourself to outdoor rubber either. Get a rubber stripper and find yourself some plans for Mini-stick and parlor mite models and any living room can be a flying site. Your first efforts won't be world beaters but you'll see improvement as you build and fly more. Make it a goal to get a one minute flight in your living room. If you make that, you will have learned the basics needed for more elaborate indoor models. Free flight tow line gliders are fun also and lots of old stuff can be rudder R/C assist to help avoid the chasing. You can build some that will be under that magic 8 ounce weight limit and thumb your nose at the FAA!!!! The late Jim Thomerson was going this rout when he got to a point where he couldn't fly C/L any more and refused to give up modeling. Hang in there, and the free flight world is your oyster!!
Type at you later,
Dan McEntee