Even with a fewer budget you can kick off your business (as far as services are concerned). The most important thing is to be involved in business area that inspire you. Otherwise it would end up with a disaster. Many entrepreneurs regret they had to sacrifice too much time on getting to know new stuff they weren't really interested in. Every kind of business may be brilliant till you're master in that part of industry. Focus on your end-customers: create a potential persona who may use your product/services. Consider how you can satisfy them and why they should choose exactly your product/services.