I need an inexpensive spec a for a project. Not much budget to buy a new Spec A. and probably won't need it afterwards. Markers would be nice but not required. Under $500 would be perfect. I have an opportunity to get a HP141T with no plugins. I need only 100 or preferably 200 mhz bandwidth. Perhaps one of you experienced users/techs could point me in the right direction. I see lots of RF and IF modules on Craigs list and ebay. I could likely repair it if needed. I would like to hear some do's and don'ts before deciding. Thanks for any help.